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Preformulation Studies and Bioavailability Enhancement of Curcumin with a 'Two in One' PEG-β-Cyclodextrin Polymer. Pharmaceutics 2021; 13:pharmaceutics13101710. [PMID: 34684005 PMCID: PMC8537279 DOI: 10.3390/pharmaceutics13101710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/11/2021] [Accepted: 10/11/2021] [Indexed: 11/18/2022] Open
Abstract
Drug delivery systems are used to improve the biopharmaceutical properties of curcumin. Our aim was to investigate the effect of a water-soluble ‘two in one’ polymer containing covalently bonded PEG and βCD moieties (βCPCD) on the solubility and bioavailability of curcumin and compare it to a polymeric β-cyclodextrin (βCDP) cross-linked with epichlorohydrin. Phase-solubility and dynamic light scattering (DLS) experiments showed that the solubility of curcumin increased significantly in 10 m/m % βCPCD and βCDP solutions, but βCPCD–curcumin particles had higher hydrodynamic volume. The formation of the βCPCD–curcumin complex in solution and sedimented phase was confirmed by NMR spectroscopy. Biocompatibility and permeability experiments were performed on Caco-2 cells. Polymers did not show cytotoxicity up to 10 m/m % and βCPCD significantly increased the permeability of curcumin. DLS measurements revealed that among the interaction of polymers with mucin, βCPCD formed bigger aggregates compared to βCDP. Curcumin complexes were lyophilized into capsules and structurally characterized by micro-CT spectroscopy. Drug release was tested in a pH 1.2 medium. Lyophilized complexes had a solid porous matrix and both βCPCD and βCDP showed rapid drug release. βCPCD provides an opportunity to create a swellable, mucoadhesive matrix system for oral drug delivery.
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2
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Periasamy R. A systematic review on the significant roles of cyclodextrins in the construction of supramolecular systems and their potential usage in various fields. J Carbohydr Chem 2020. [DOI: 10.1080/07328303.2020.1792919] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- R. Periasamy
- Department of Chemistry, Annamalai University, Annamalainagar, India
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3
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Al-Nasiri G, Cran MJ, Smallridge AJ, Bigger SW. Optimisation of β-cyclodextrin inclusion complexes with natural antimicrobial agents: thymol, carvacrol and linalool. J Microencapsul 2017; 35:26-35. [PMID: 29198147 DOI: 10.1080/02652048.2017.1413147] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Beta-cyclodextrin (β-CD) inclusion complexes with naturally derived antimicrobial (AM) agents: thymol, carvacrol and linalool were prepared using a co-precipitation technique. Conditions including solvent composition, temperature, reaction time and total solvent volume were investigated to optimise the inclusion efficiency (IE) and yield. Electrospray ionisation mass spectrometry was used to confirm the formation of the thymol/β-CD complex and gas chromatography was used to quantify the amount AM agent that was encapsulated, absorbed onto the surface, or remaining in the filtered solvent. The systematic optimisation of the conditions improved both the yield of the complex and the IE of the AM agents compared to previously reported methods that have been applied to other agents. Using a 1:1 mole ratio of the AM agent to β-CD, the optimised parameters resulted in maximum yields of 87, 84 and 86% (w/w) for thymol, carvacrol and linalool, respectively, with IE's close to 100% (w/w) for each agent.
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Affiliation(s)
- Ghofran Al-Nasiri
- a College of Engineering and Science , Institute for Sustainability and Innovation, Victoria University , Melbourne , Australia
| | - Marlene J Cran
- a College of Engineering and Science , Institute for Sustainability and Innovation, Victoria University , Melbourne , Australia
| | - Andrew J Smallridge
- a College of Engineering and Science , Institute for Sustainability and Innovation, Victoria University , Melbourne , Australia
| | - Stephen W Bigger
- a College of Engineering and Science , Institute for Sustainability and Innovation, Victoria University , Melbourne , Australia
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Rahimi M, Mobedi H, Behnamghader A. In situforming poly(lactic acid-co-glycolic acid) implants containing leuprolide acetate/β-cyclodextrin complexes: preparation, characterization, andin vitrodrug release. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1055633] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Rahimi M, Mobedi H, Behnamghader A. Aqueous stability of leuprolide acetate: effect of temperature, dissolved oxygen, pH and complexation with β-cyclodextrin. Pharm Dev Technol 2014; 21:108-15. [PMID: 25331295 DOI: 10.3109/10837450.2014.971377] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In the present research, the aqueous stability of leuprolide acetate (LA) in phosphate buffered saline (PBS) medium was studied (pH = 2.0-7.4). For this purpose, the effect of temperature, dissolved oxygen and pH on the stability of LA during 35 days was investigated. Results showed that the aqueous stability of LA was higher at low temperatures. Degassing of the PBS medium partially increased the stability of LA at 4 °C, while did not change at 37 °C. The degradation of LA was accelerated at lower pH values. In addition, complexes of LA with different portions of β-cyclodextrin (β-CD) were prepared through freeze-drying procedure and characterized by Fourier transform infrared (FTIR) and differential scanning calorimetry (DSC) analyses. Studying their aqueous stability at various pH values (2.0-7.4) showed LA/β-CD complexes exhibited higher stability when compared with LA at all pH values. The stability of complexes was also improved by increasing the portion of LA/β-CD up to 1/10.
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Affiliation(s)
- Mehdi Rahimi
- a Department of Biomedical Engineering, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Hamid Mobedi
- b Department of Novel Drug Delivery Systems , Iran Polymer and Petrochemical Institute , Tehran , Iran , and
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6
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Development of a rebamipide solid dispersion system with improved dissolution and oral bioavailability. Arch Pharm Res 2014; 38:522-33. [DOI: 10.1007/s12272-014-0399-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 04/07/2014] [Indexed: 11/26/2022]
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7
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Lee DW, Marasini N, Poudel BK, Kim JH, Cho HJ, Moon BK, Choi HG, Yong CS, Kim JO. Application of Box–Behnken design in the preparation and optimization of fenofibrate-loaded self-microemulsifying drug delivery system (SMEDDS). J Microencapsul 2013; 31:31-40. [DOI: 10.3109/02652048.2013.805837] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Respirable low-density microparticles formed in situ from aerosolized brittle matrices. Pharm Res 2012; 30:813-25. [PMID: 23229856 DOI: 10.1007/s11095-012-0922-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 10/22/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE Inhalation of low-density porous particles enables deep lung delivery with less dependence on device design and patient inspiration. The purpose of this study was to implement Thin Film Freezing (TFF) to investigate a novel approach to dry powder inhalation. METHODS Powders produced by TFF were evaluated for aerodynamic and geometric particle size by cascade impaction and laser light scattering, respectively. Density measurements were conducted according to USP methods and calculated using data from particle size measurements. Excipient inclusion and its effect on moisture sorption was measured by Dynamic Vapor Sorption (DVS). RESULTS TFF-produced brittle matrix powders were sheared apart into respirable microparticles using a passive DPI device, producing fine particle fractions (FPF) up to 69% and mass median aerodynamic diameters (MMAD) as low as 2.6 μm. Particles had a mean geometric diameter ranging from 25 μm to 50 μm and mass densities of approximately 0.01 g/cm(3). Powders were susceptible to moisture-induced matrix collapse, capillary forces and electrostatic charging; although formulations containing mannitol or no sugar excipient proved to be more robust. CONCLUSIONS Aerosolized brittle matrices produced by TFF may prove to be a useful platform for highly efficient pulmonary delivery of thermally labile, highly potent, and poorly soluble drugs.
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Kim GG, Poudel BK, Marasini N, Lee DW, Hiep TT, Yang KY, Kim JO, Yong CS, Choi HG. Enhancement of oral bioavailability of fenofibrate by solid self-microemulsifying drug delivery systems. Drug Dev Ind Pharm 2012; 39:1431-8. [DOI: 10.3109/03639045.2012.719903] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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10
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Choi YK, Poudel BK, Marasini N, Yang KY, Kim JW, Kim JO, Choi HG, Yong CS. Enhanced solubility and oral bioavailability of itraconazole by combining membrane emulsification and spray drying technique. Int J Pharm 2012; 434:264-71. [DOI: 10.1016/j.ijpharm.2012.05.039] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Revised: 05/05/2012] [Accepted: 05/19/2012] [Indexed: 11/25/2022]
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11
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Pradhan R, Lee DW, Choi HG, Yong CS, Kim JO. Fabrication of a uniformly sized fenofibrate microemulsion by membrane emulsification. J Microencapsul 2012; 30:42-8. [DOI: 10.3109/02652048.2012.692403] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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12
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Baek HH, Kim DH, Kwon SY, Rho SJ, Kim DW, Choi HG, Kim YR, Yong CS. Development of novel ibuprofen-loaded solid dispersion with enhanced bioavailability using cycloamylose. Arch Pharm Res 2012; 35:683-9. [PMID: 22553061 DOI: 10.1007/s12272-012-0412-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 08/29/2011] [Accepted: 09/09/2011] [Indexed: 10/28/2022]
Abstract
To develop a novel ibuprofen-loaded solid dispersion with enhanced bioavailability using cycloamylose, it was prepared using spray-drying techniques with cycloamylose at a weight ratio of 1:1. The effect of cycloamylose on aqueous solubility of ibuprofen was investigated. The physicochemical properties of solid dispersions were investigated using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and X-ray diffraction. The dissolution and bioavailability in rats were evaluated compared with ibuprofen powder. This ibuprofen-loaded solid dispersion improved about 14-fold drug solubility. Ibuprofen was present in an unchanged crystalline state, and cycloamylose played the simple role of a solubilizing agent in this solid dispersion. Moreover, the dispersion gave 2-fold higher AUC (area under the drug concentration-time curve) value compared with a ibuprofen powder, indicating that it improved the oral bioavailability of ibuprofen in rats. Thus, the solid dispersion may be useful to deliver ibuprofen with enhanced bioavailability without crystalline change.
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Affiliation(s)
- Hyung Hee Baek
- Department of Food Engineering, Dankook University, Cheonan, 330-714, Korea
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13
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Effects of solid carriers on the crystalline properties, dissolution and bioavailability of flurbiprofen in solid self-nanoemulsifying drug delivery system (solid SNEDDS). Eur J Pharm Biopharm 2012; 80:289-97. [DOI: 10.1016/j.ejpb.2011.11.005] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 11/02/2011] [Accepted: 11/09/2011] [Indexed: 11/18/2022]
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14
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Miranda JCD, Martins TEA, Veiga F, Ferraz HG. Cyclodextrins and ternary complexes: technology to improve solubility of poorly soluble drugs. BRAZ J PHARM SCI 2011. [DOI: 10.1590/s1984-82502011000400003] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cyclodextrins (CDs) are cyclic oligosaccharides composed of D-glucopyranoside units linked by glycosidic bonds. Their main property is the ability to modify the physicochemical and biological characteristics of low-soluble drugs through the formation of drug:CD inclusion complexes. Inclusion complexation requires that host molecules fit completely or partially within the CD cavity. This adjustment is directly related to the physicochemical properties of the guest and host molecules, easy accommodation of guest molecules within the CD cavity, stoichiometry, therapeutic dose, and toxicity. However, dosage forms may achieve a high volume, depending on the amount of CD required. Thus, it is necessary to increase solubilization efficiency in order to use smaller amounts of CD. This can be achieved by adding small amounts of water-soluble polymers to the system. This review addresses aspects related to drug complexation with CDs using water-soluble polymers to optimize the amount of CD used in the formulation in order to increase drug solubility and reduce dosage form volume.
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15
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Comparison of solid self-microemulsifying drug delivery system (solid SMEDDS) prepared with hydrophilic and hydrophobic solid carrier. Int J Pharm 2011; 420:412-8. [DOI: 10.1016/j.ijpharm.2011.09.007] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 08/30/2011] [Accepted: 09/11/2011] [Indexed: 11/22/2022]
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16
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Enhanced solubility and bioavailability of flurbiprofen by cycloamylose. Arch Pharm Res 2011; 34:391-7. [DOI: 10.1007/s12272-011-0306-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 11/29/2010] [Accepted: 11/30/2010] [Indexed: 10/18/2022]
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17
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Comparison of the solubility and pharmacokinetics of sildenafil salts. Arch Pharm Res 2011; 34:451-4. [DOI: 10.1007/s12272-011-0313-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 12/07/2010] [Accepted: 12/14/2010] [Indexed: 10/18/2022]
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18
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Development of novel itraconazole-loaded solid dispersion without crystalline change with improved bioavailability. Arch Pharm Res 2010; 33:1217-25. [DOI: 10.1007/s12272-010-0812-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 05/11/2010] [Accepted: 05/20/2010] [Indexed: 11/26/2022]
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19
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Oh DH, Park YJ, Kang JH, Yong CS, Choi HG. Physicochemical characterization and in vivo evaluation of flurbiprofen-loaded solid dispersion without crystalline change. Drug Deliv 2010; 18:46-53. [DOI: 10.3109/10717544.2010.509365] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Effect of the solid-dispersion method on the solubility and crystalline property of tacrolimus. Int J Pharm 2010; 395:161-6. [DOI: 10.1016/j.ijpharm.2010.05.023] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 05/13/2010] [Accepted: 05/18/2010] [Indexed: 11/21/2022]
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21
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Jeong SH, Youn YS, Shin BS, Park ES. Drug Polymorphism and its Importance on Drug Development Process. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2010. [DOI: 10.4333/kps.2010.40.s.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Park YJ, Oh DH, Yan YD, Seo YG, Lee SN, Choi HG, Yong CS. Surface-attached Solid Dispersion. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2010. [DOI: 10.4333/kps.2010.40.s.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Tiwari G, Tiwari R, Rai AK. Cyclodextrins in delivery systems: Applications. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2010; 2:72-9. [PMID: 21814436 PMCID: PMC3147107 DOI: 10.4103/0975-7406.67003] [Citation(s) in RCA: 248] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2010] [Revised: 03/26/2010] [Accepted: 04/13/2010] [Indexed: 11/06/2022] Open
Abstract
Cyclodextrins (CDs) are a family of cyclic oligosaccharides with a hydrophilic outer surface and a lipophilic central cavity. CD molecules are relatively large with a number of hydrogen donors and acceptors and, thus in general, they do not permeate lipophilic membranes. In the pharmaceutical industry, CDs have mainly been used as complexing agents to increase aqueous solubility of poorly soluble drugs and to increase their bioavailability and stability. CDs are used in pharmaceutical applications for numerous purposes, including improving the bioavailability of drugs. Current CD-based therapeutics is described and possible future applications are discussed. CD-containing polymers are reviewed and their use in drug delivery is presented. Of specific interest is the use of CD-containing polymers to provide unique capabilities for the delivery of nucleic acids. Studies in both humans and animals have shown that CDs can be used to improve drug delivery from almost any type of drug formulation. Currently, there are approximately 30 different pharmaceutical products worldwide containing drug/CD complexes in the market.
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Affiliation(s)
- Gaurav Tiwari
- Jaipur National University, Jagatpura, Jaipur, Rajasthan, India
| | - Ruchi Tiwari
- Department of pharmaceutics, Pranveer Singh Institute of Technology, Kalpi Road, Bhauti, Kanpur 208020, Uttar Pradesh, India
| | - Awani K. Rai
- Department of pharmaceutics, Pranveer Singh Institute of Technology, Kalpi Road, Bhauti, Kanpur 208020, Uttar Pradesh, India
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Multivariate Data Analysis of Factors Affecting the In Vitro Dissolution Rate and the Apparent Solubility for a Model Basic Drug Substance in Aqueous Media. Pharm Res 2010; 27:1309-17. [DOI: 10.1007/s11095-010-0111-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Accepted: 03/01/2010] [Indexed: 10/19/2022]
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25
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Li DX, Han MJ, Balakrishnan P, Yan YD, Oh DH, Joe JH, Seo Y, Kim JO, Park SM, Yong CS, Choi HG. Enhanced oral bioavailability of flurbiprofen by combined use of micelle solution and inclusion compound. Arch Pharm Res 2010; 33:95-101. [PMID: 20191350 DOI: 10.1007/s12272-010-2231-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Revised: 09/14/2009] [Accepted: 09/16/2009] [Indexed: 10/19/2022]
Abstract
The main purpose of this study was to evaluate the effect of a mixed drug solution containing a surfactant and beta-cyclodextrin (beta-CD) on the solubility and bioavailability of a poorly water soluble drug, flurbiprofen. Solubility, dissolution and in vivo pharmacokinetics of flurbiprofen in the presence of surfactant, beta-CD or mixture of surfactant and beta-CD were investigated. Among the surfactants tested, Tween 80 produced the highest improvement in the aqueous solubility of flurbiprofen. The solubility of flurbiprofen increased linearly as a function of beta-CD, resulting in B8 type that suggested a formation of inclusion complex in a molar ratio of 1:1. The solubility of flurbiprofen increased further when Tween 80 was included in addition to beta-CD, suggesting that a micelle formation in the presence of Tween 80 was the likely reason for additional increase. Furthermore, the data suggested that Tween 80 did not interfere with the inclusion interaction between flurbiprofen and beta-CD. The solubility of flurbiprofen was the highest in the mixed system containing 1.3 mM beta-CD and 0.3% w/v Tween 80, and the maximum solubility of 160 microg/mL was achieved. Consistent with the enhanced solubility, the plasma exposure (both AUC and Cmax) of flurbiprofen when dosed as the mixed system was significantly higher (as much as 2 to 3-fold) than that without surfactant or beta-CD, with surfactant alone, or with beta-CD alone. Therefore, the mixed system consists of surfactant and beta-CD could be used as an effective oral dosage form to improve bioavailability of poorly water soluble drugs such as flurbiprofen.
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Affiliation(s)
- Dong Xun Li
- College of Pharmacy, Yeungnam University, Gyongsan 712-749, Korea
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Li DX, Jang KY, Kang W, Bae K, Lee MH, Oh YK, Jee JP, Park YJ, Oh DH, Seo YG, Kim YR, Kim JO, Woo JS, Yong CS, Choi HG. Enhanced Solubility and Bioavailability of Sibutramine Base by Solid Dispersion System with Aqueous Medium. Biol Pharm Bull 2010; 33:279-84. [DOI: 10.1248/bpb.33.279] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - Wonku Kang
- College of Pharmacy, Catholic University of Daegu
| | | | | | | | - Jun-Pil Jee
- College of Pharmacy, Seoul National University
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Park YJ, Ryu DS, Li DX, Quan QZ, Oh DH, Kim JO, Seo YG, Lee YI, Yong CS, Woo JS, Choi HG. Physicochemical characterization of tacrolimus-loaded solid dispersion with sodium carboxylmethyl cellulose and sodium lauryl sulfate. Arch Pharm Res 2009; 32:893-8. [DOI: 10.1007/s12272-009-1611-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Revised: 04/24/2009] [Accepted: 04/28/2009] [Indexed: 11/28/2022]
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28
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Park YJ, Kwon R, Quan QZ, Oh DH, Kim JO, Hwang MR, Koo YB, Woo JS, Yong CS, Choi HG. Development of novel ibuprofen-loaded solid dispersion with improved bioavailability using aqueous solution. Arch Pharm Res 2009; 32:767-72. [DOI: 10.1007/s12272-009-1516-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Revised: 04/09/2009] [Accepted: 04/12/2009] [Indexed: 11/30/2022]
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29
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Kim JK, Kim MS, Park JS, Kim CK. Thermo-reversible flurbiprofen liquid suppository with HP-β-CD as a solubility enhancer: improvement of rectal bioavailability. J INCL PHENOM MACRO 2009. [DOI: 10.1007/s10847-009-9560-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Yong CS, Lee MK, Park YJ, Kong KH, Xuan JJ, Kim JH, Kim JA, Lyoo WS, Han SS, Rhee JD, Kim JO, Yang CH, Kim CK, Choi HG. Enhanced Oral Bioavailability of Ibuprofen in Rats by Poloxamer Gel Using Poloxamer 188 and Menthol. Drug Dev Ind Pharm 2008; 31:615-22. [PMID: 16207608 DOI: 10.1080/03639040500216113] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
To improve the oral bioavailability of poorly water-soluble ibuprofen with poloxamer and menthol, the effects of menthol and poloxamer 188 on the aqueous solubility of ibuprofen were investigated. The dissolution and pharmacokinetic study of ibuprofen delivered by the ibuprofen-loaded preparations composed of poloxamer 188 and menthol were then performed. In the absence of poloxamer, the solubility of ibuprofen increased until the ratio of menthol to ibuprofen increased from 0:10 to 4:6 followed by an abrupt decrease in solubility above the ratio of 4:6, indicating that four parts menthol formed eutectic mixture with six parts ibuprofen. In the presence of poloxamer, the solutions with the same ratio of menthol to ibuprofen showed an abrupt increase in the solubility of ibuprofen. The poloxamer gel with menthol/ibuprofen ratio of 1:9 and higher than 15% poloxamer 188 showed the maximum solubility of ibuprofen, 1.2 mg/mL. The simultaneous addition of menthol and poloxamer 188 significantly improved the dissolution rates of ibuprofen from aqueous solution due to the ibuprofen solubility-improving effect of menthol in the presence of poloxamer. Furthermore, the ibuprofen-loaded preparation with menthol and poloxamer 188 gave significantly higher initial plasma concentrations, Cmax, and AUC of ibuprofen than did the preparation without menthol and poloxamer 188, indicating that the simultaneous addition of menthol and poloxamer 188 could improve the oral bioavailability of ibuprofen in rats. In modern pain management it is always desirable for the ibuprofen-loaded preparation with poloxamer 188 and menthol to show a rapid onset of action with a minimal phase of lag time to feel the decreased pain. From an industry point of view, it is more desirable for a formulation to be fast acting, easy to use, and cost effective. Thus, the ibuprofen-loaded preparation with poloxamer 188 and menthol was a more effective oral dosage form for poorly water-soluble ibuprofen.
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Affiliation(s)
- Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyongsan, South Korea
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Carrier RL, Miller LA, Ahmed I. The utility of cyclodextrins for enhancing oral bioavailability. J Control Release 2007; 123:78-99. [PMID: 17888540 DOI: 10.1016/j.jconrel.2007.07.018] [Citation(s) in RCA: 384] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2007] [Accepted: 07/30/2007] [Indexed: 11/19/2022]
Abstract
Cyclodextrins (CD) have been utilized extensively in pharmaceutical formulations to enhance oral bioavailability. A critical review of the literature in which cyclodextrins were utilized for this purpose was conducted. The goal of this review was to determine if quantitative guidelines for drug and cyclodextrin properties necessary for bioavailability enhancement using cyclodextrins could be extracted. Twenty-eight studies were examined in which the focus was on the use of cyclodextrins as solubilizers to enhance bioavailability. Commonly observed factors included: utilization of pre-formed complex rather than physical mixtures, drug hydrophobicity (logP > 2.5), low drug solubility (typically< 1 mg/ml), moderate binding constant (< 5000 M(-1)), low dose (< 100 mg), and low CD:drug ratio (< 2:1). These general guidelines, however, did not apply to all studies. Quantitative guidelines useful to a formulation scientist considering the use of cyclodextrins were difficult to develop due to missing information and the complicated manner in which drug and cyclodextrin properties interact to influence key drug delivery processes (e.g., dissolution, absorption). The mechanisms by which cyclodextrins influence these processes, again emphasizing solubilization capabilities, are discussed to provide further insight into why cyclodextrins will increase bioavailability in certain cases but not influence or possibly decrease bioavailability in others.
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Affiliation(s)
- Rebecca L Carrier
- Department of Chemical Engineering, Northeastern University, 457 Snell Engineering Center, Boston, Massachusetts 02115, USA.
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Mikhail A, Fischer C, Patel A, Long MA, Limberis JT, Martin RL, Cox BF, Gintant GA, Su Z. Hydroxypropyl β-Cyclodextrins: A Misleading Vehicle for the In Vitro hERG Current Assay. J Cardiovasc Pharmacol 2007; 49:269-74. [PMID: 17513944 DOI: 10.1097/fjc.0b013e318036dd05] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Delayed cardiac repolarization and fatal proarrhythmia have been linked to block of the repolarizing current, Ikr or hERG (human ether-a-go-go related gene) current. Thus, determining the potency of hERG block is critical in evaluating cardiac safety during preclinical development. Hydroxypropyl beta-cyclodextrins (HbetaC) are cyclic oligosaccharides used to enhance drug solubility. To evaluate the utility of HbetaC to enhance drug solubility in hERG screening assays, we studied the effect of HbetaC on hERG current and the sensitivity of the hERG assay to 3 structurally different hERG blocking drugs using whole-cell voltage clamp technique and HEK-293 cells expressing the hERG channel. HbetaC inhibited hERG activation and tail current and accelerated current deactivation in a concentration-dependent manner. HbetaC (6%) reduced the apparent potency of block by terfenadine (IC50 12000 nM vs 45 nM), cisapride (IC50 281 nM vs 28 nM), and E-4031 (163 nM vs 26 nM). Reduced potency of block was consistent with loss of activity as a result of complexation with HbetaC by terfenadine and cisapride (demonstrated in solubility studies) and interactions with HbetaC by E-4031 (demonstrated in absorbance studies). These results demonstrate that HbetaC is an unsuitable agent for enhancing compound solubility in the in vitro hERG current assay and may mask drug effects, allowing potentially dangerous drugs to advance into clinical development.
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Affiliation(s)
- Ann Mikhail
- Department of Integrative Pharmacology, Abbott, Abbott Park, Illinois 60064, USA
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Najlah M, Freeman S, Attwood D, D'Emanuele A. Synthesis and Assessment of First-Generation Polyamidoamine Dendrimer Prodrugs to Enhance the Cellular Permeability of P-gp Substrates. Bioconjug Chem 2007; 18:937-46. [PMID: 17355118 DOI: 10.1021/bc060325q] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of this study is to evaluate the potential use of first-generation (G1) polyamidoamine (PAMAM) dendrimers as drug carriers to enhance the permeability, hence oral absorption, of drugs that are substrates for P-glycoprotein (P-gp) efflux transporters. G1 PAMAM dendrimer-based prodrugs of the water-insoluble P-gp substrate terfenadine (Ter) were synthesized using succinic acid (suc) or succinyl-diethylene glycol (suc-deg) as a linker/spacer (to yield G1-suc-Ter and G1-suc-deg-Ter, respectively). In addition, the permeability of G1-suc-deg-Ter was enhanced by attaching two lauroyl chains (L) to the dendrimer surface (L2-G1-suc-deg-Ter). All of the G1 dendrimer-terfenadine prodrugs were more hydrophilic than the parent drug, as evaluated by drug partitioning between 1-octanol and phosphate buffer at pH 7.4 (log K(app)). The influence of the dendrimer prodrugs on the integrity and viability of human Caucasian colon adenocarcinoma cells (Caco-2) was determined by measuring the transepithelial electrical resistance (TEER) and leakage of lactate dehydrogenase (LDH) enzyme, respectively. The LDH assay indicated that the dendrimer prodrugs had no impact on the viability of Caco-2 cells up to a concentration of 1 mM. However, the IC(50) of the prodrugs was lower than that of G1 PAMAM dendrimer because of the high toxicity of terfenadine. Measurements of the transport of dendrimer prodrugs across monolayers of Caco-2 cells showed an increase of the apparent permeability coefficient (P(app)) of terfenadine in both apical-to-basolateral (A --> B) and basolateral-to-apical (B --> A) directions after its conjugation to G1 PAMAM dendrimer. The A --> B P(app) of the dendrimer prodrugs was significantly greater than B --> A P(app). The surface-modified dendrimer prodrug L2-G1-suc-deg-Ter showed the highest A --> B permeability among the conjugates.
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Affiliation(s)
- Mohammad Najlah
- School of Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester M13 9PL, UK
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Prabagar B, Yoo BK, Woo JS, Kim JA, Rhee JD, Piao MG, Choi HG, Yong CS. Enhanced bioavailability of poorly water-soluble clotrimazole by inclusion with β-cyclodextrin. Arch Pharm Res 2007; 30:249-54. [PMID: 17366748 DOI: 10.1007/bf02977701] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Clotrimazole, a poorly water-soluble antimycotic agent, is a promising agent for various diseases including cancer and sickle cell anemia. To improve the oral bioavailability of clotrimazole, the inclusion compound of clotrimazole with beta-cyclodextrin was prepared by spray-drying method and characterized by phase solubility, differential scanning calorimetry and dissolution. Furthermore, the pharmacokinetics after oral administration in rats was then performed compared with clotrimazole powder. The solubility of clotrimazole increased linearly as a function of beta-cyclodextrin concentration, resulting in A(L) type phase solubility diagram which revealed a formation of inclusion compound in a molar ratio of 1:2, with the apparent association constant of 230.2 M(-1). The dissolution rate of clotrimazole in the inclusion compound increased greatly compared to clotrimazole powder in pH 7.4 phosphate buffer solution. The inclusion compound gave significantly higher initial plasma concentrations, Cmax and AUC of clotrimazole than did clotrimazole powder when they were administered as suspension form, indicating that the drug from inclusion compound could be more orally absorbed in rats. Thus, the oral bioavailability of clotrimazole could be improved markedly by inclusion complexation, possibly due to an increased dissolution rate.
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Thermodynamic enthalpy–entropy compensation effects observed in the complexation of basic drug substrates with β-cyclodextrin. J INCL PHENOM MACRO 2007. [DOI: 10.1007/s10847-006-9254-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Effect of Buffer Species on the Complexation of Basic Drug Terfenadine with β-Cyclodextrin. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-006-9147-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yong CS, Xuan JJ, Paek SH, Oh YK, Woo JS, Lee MH, Kim JA, Choi HG. Enhanced anti-tumor activity and alleviated hepatotoxicity of clotrimazole-loaded suppository using poloxamer-propylene glycol gel. Int J Pharm 2006; 321:56-61. [PMID: 16790328 DOI: 10.1016/j.ijpharm.2006.05.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2006] [Revised: 04/02/2006] [Accepted: 05/04/2006] [Indexed: 11/28/2022]
Abstract
To develop a novel clotrimazole-loaded poloxamer-based suppository with enhanced anti-tumor activity and alleviated hepatotoxicity, the melting point of various formulations composed of P 188 and propylene glycol were investigated. The dissolution and anti-tumor activity of clotrimazole delivered by the poloxamer-based suppository was performed. Furthermore, the hepatotoxicity of clotrimazole was carried out after its rectal administration compared to oral administration in mice. The poloxamer mixtures composed of P 188 and propylene glycol were homogeneous phases. P 188 greatly affected the melting point of poloxamer mixtures. In particular, the poloxamer mixture [P 188/propylene glycol (70%/30%)] with the melting point of about 32 degrees C was a solid form at room temperature and instantly melted at physiological temperature. The ratio of P 188/propylene glycol greatly affected the dissolution rates of clotrimazole from poloxamer-based suppository. Dissolution mechanism analysis showed the dissolution rate of clotrimazole from poloxamer-based suppositories was independent of the time. The clotrimazole-loaded suppository with P 188 and propylene glycol could not irritate or damage the rectal tissues of rats and gave the improved anti-tumor activity in a dose-dependent manner at mouse. Furthermore, its rectal administration decreased the hepatotoxicity compared to oral administration. Thus, the poloxamer-based solid suppository system with clotrimazole/P 188/propylene glycol was an effective rectal dosage form for the treatment of tumors with alleviated adverse effects.
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Affiliation(s)
- Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
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Challa R, Ahuja A, Ali J, Khar RK. Cyclodextrins in drug delivery: an updated review. AAPS PharmSciTech 2005; 6:E329-57. [PMID: 16353992 PMCID: PMC2750546 DOI: 10.1208/pt060243] [Citation(s) in RCA: 743] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The purpose of this review is to discuss and summarize some of the interesting findings and applications of cyclodextrins (CDs) and their derivatives in different areas of drug delivery, particularly in protein and peptide drug delivery and gene delivery. The article highlights important CD applications in the design of various novel delivery systems like liposomes, microspheres, microcapsules, and nanoparticles. In addition to their well-known effects on drug solubility and dissolution, bioavailability, safety, and stability, their use as excipients in drug formulation are also discussed in this article. The article also focuses on various factors influencing inclusion complex formation because an understanding of the same is necessary for proper handling of these versatile materials. Some important considerations in selecting CDs in drug formulation such as their commercial availability, regulatory status, and patent status are also summarized. CDs, because of their continuing ability to find several novel applications in drug delivery, are expected to solve many problems associated with the delivery of different novel drugs through different delivery routes.
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Affiliation(s)
- Rajeswari Challa
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - Alka Ahuja
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - Javed Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - R. K. Khar
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
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Yong CS, Oh YK, Kim YI, Kim JO, Yoo BK, Rhee JD, Lee KC, Kim DD, Park YJ, Kim CK, Choi HG. Physicochemical characterization and in vivo evaluation of poloxamer-based solid suppository containing diclofenac sodium in rats. Int J Pharm 2005; 301:54-61. [PMID: 16024191 DOI: 10.1016/j.ijpharm.2005.05.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2004] [Revised: 05/03/2005] [Accepted: 05/10/2005] [Indexed: 11/22/2022]
Abstract
To develop a poloxamer-based solid suppository with poloxamer mixtures, the melting point of various formulations composed of poloxamer 124 (P 124) and poloxamer 188 (P 188) were investigated. The dissolution and pharmacokinetic study of diclofenac sodium delivered by the poloxamer-based suppository were performed. Furthermore, the identification test in the rectum and morphology test of rectal tissues were carried out after its rectal administration in rats. The poloxamer mixtures composed of P 124 and P 188 were homogeneous phases. Very small amounts of P 188 affected the melting point of poloxamer mixtures. In particular, the poloxamer mixture [P 124/P 188 (97/3%)] with the melting point of about 32 degrees C was a solid form at room temperature and instantly melted at physiological temperature. Very small amounts of P 188 hardly affected the dissolution rates of diclofenac sodium from the suppository. Dissolution mechanism analysis showed the dissolution of diclofenac sodium was proportional to the time. The poloxamer-based suppository gave significantly higher initial plasma concentrations and faster T(max) of diclofenac sodium than did conventional PEG-based suppository, indicating that the drug from poloxamer-based suppository could be absorbed faster than that from PEG-based one in rats. It retained in the rectum for at least 4 h and could not irritate or damage the rectal tissues of rats. Thus, the poloxamer-based solid suppository with P 124 and P 188 was a mucoadhesive, safe and effective rectal dosage form for diclofenac sodium.
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Affiliation(s)
- Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
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Yong CS, Oh YK, Jung SH, Rhee JD, Kim HD, Kim CK, Choi HG. Preparation of ibuprofen-loaded liquid suppository using eutectic mixture system with menthol. Eur J Pharm Sci 2004; 23:347-53. [PMID: 15567287 DOI: 10.1016/j.ejps.2004.08.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2004] [Revised: 08/05/2004] [Accepted: 08/16/2004] [Indexed: 11/21/2022]
Abstract
To prepare an ibuprofen-loaded liquid suppository using eutectic mixture with menthol, the effects of menthol and poloxamer 188 (P 188) on the aqueous solubility of ibuprofen were investigated. The physicochemical properties such as gelation temperature, gel strength and bioadhesive force of various formulations composed of ibuprofen, menthol and P 188 were investigated. Then, the pharmacokinetic study of ibuprofen delivered by the liquid suppositories composed of P 188 and menthol were then performed. In the absence of P 188, the solubility of ibuprofen increased until the ratio of menthol to ibuprofen increased from 0:10 to 4:6 followed by an abrupt decrease in solubility above the ratio of 4:6, indicating that four parts of ibuprofen formed eutectic mixture with six parts of menthol. In the presence of P 188, the solutions with the same ratio showed abrupt increase in the solubility of ibuprofen. Furthermore, the solution with ratio of 4:6 showed more than 2.5- and 6-fold increase in the solubility of ibuprofen compared with that without additives and that without menthol, respectively. The poloxamer gel with menthol/ibuprofen ratio of 1:9 and higher than 15% poloxamer 188 showed the maximum solubility of ibuprofen, 1.2mg/ml. Ibuprofen increased the gelation temperature and weakened the gel strength and bioadhesive force of liquid suppositories. However, menthol did the opposite due to forming the eutectic mixture with ibuprofen. The ibuprofen-loaded liquid suppository [P 188/menthol/ibuprofen (15/0.25/2.5%)] with the maximum ibuprofen solubility of 1.2mg/ml was administered easily to the anus and to remain at the administered site without leakage after the dose. Furthermore, it gave significantly higher initial plasma concentrations, Cmax and AUC of ibuprofen than did solid suppository, indicating that the drug from poloxamer gel could be more absorbed than that from solid one in rats. Thus, the liquid suppository system with P 188 and menthol, a more convenient and effective rectal dosage form for ibuprofen will be expected to enhance the rectal bioavailability of ibuprofen.
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Affiliation(s)
- Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
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Yong CS, Yang CH, Rhee JD, Lee BJ, Kim DC, Kim DD, Kim CK, Choi JS, Choi HG. Enhanced rectal bioavailability of ibuprofen in rats by poloxamer 188 and menthol. Int J Pharm 2004; 269:169-76. [PMID: 14698588 DOI: 10.1016/j.ijpharm.2003.09.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
To improve the bioavailability of poorly water-soluble ibuprofen in the rectum with poloxamer and menthol, the effects of menthol and poloxamer 188 on the aqueous solubility of ibuprofen were investigated. The dissolution and pharmacokinetic study of ibuprofen delivered by the poloxamer gels composed of poloxamer 188 and menthol were then performed. In the absence of poloxamer, the solubility of ibuprofen increased until the ratio of menthol to ibuprofen increased from 0:10 to 4:6 followed by an abrupt decrease in solubility above the ratio of 4:6, indicating that four parts menthol formed eutectic mixture with six parts ibuprofen. In the presence of poloxamer, the solutions with the same ratio of menthol to ibuprofen showed abrupt increase in the solubility of ibuprofen. The poloxamer gel with menthol/ibuprofen ratio of 1:9 and higher than 15% poloxamer 188 showed the maximum solubility of ibuprofen, 1.2mg/ml. Menthol improved the dissolution rates of ibuprofen from poloxamer gels. Release mechanism showed that the release rate of ibuprofen from the poloxamer gels without menthol was independent of the time but the drug might be released from the poloxamer gels with menthol by Fickian diffusion. Furthermore, the poloxamer gel with menthol (poloxamer/menthol/ibuprofen (15%/0.25%/2.5%)) gave significantly higher initial plasma concentrations, C(max) and AUC of ibuprofen than did solid suppository, indicating that the drug from poloxamer gel could be more absorbed than that from solid one in rats. Thus, the poloxamer gel with poloxamer 188 and menthol was a more effective rectal dosage form for ibuprofen.
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Affiliation(s)
- Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyongsan 712-749, South Korea
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