1
|
Eid RK, Arafa MF, Ashour DS, Essa EA, El-Wakil ES, Younis SS, El Maghraby GM. Surfactant vesicles for enhanced antitoxoplasmic effect of norfloxacin: in vitro and in vivo evaluations. Int J Pharm 2023; 638:122912. [PMID: 37015296 DOI: 10.1016/j.ijpharm.2023.122912] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/06/2023]
Abstract
The goal was to scrutinize niosomes as potential carriers for enhanced efficacy of norfloxacin against Toxoplasma gondii RH strain. This was assessed in vitro and in vivo. Standard niosomes of Span 60 and cholesterol were prepared. Gelucire 48/16 or Tween 80 was incorporated as hydrophilic fluidizer. The prepared vesicles were characterized for shape, size, viscosity and norfloxacin release. The in vitro anti-Toxoplasma was assessed by monitoring tachyzoites viability after incubation with niosomes. In vivo efficacy of niosomes encapsulated norfloxacin was evaluated on infected mice. Transmission electron micrographs showed nano-sized spherical vesicles. Norfloxacin release varied with niosomal composition to show faster liberation in presence of fluidizing agent. The half maximum effective concentration of norfloxacin against tachyzoites (EC50) was significantly reduced after niosomal encapsulation compared with simple drug solution with no significant difference between vesicular formulations. Tachyzoite count in the peritoneal fluid of infected mice was reduced by 45.2, 90.8, 88.3 and 84% after treatment with simple drug dispersion, standard niosomes, Gelucire containing and Tween containing vesicles, respectively compared to infected untreated mice. These results correlate with the in vitro data and reflects the efficacy of niosomes. The study introduced surfactant vesicles as a tool for enhanced efficacy of norfloxacin against toxoplasma.
Collapse
Affiliation(s)
- Rania K Eid
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Mona F Arafa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Dalia S Ashour
- Department of Parasitology, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Ebtessam A Essa
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Eman S El-Wakil
- Department of Parasitology, Theodor Bilharz Research Institute, Kornaish El-Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt.
| | - Salwa S Younis
- Medical Parasitology Department, Faculty of Medicine, Alexandria University, Egypt.
| | - Gamal M El Maghraby
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| |
Collapse
|
2
|
Liu MK, Chen HL, Chen LL, Jiang H, Liu R, Pei ZC, Li K, Wei ZP, Xu H. Andrographolide Liquisolid using Porous-Starch as the Adsorbent with Enhanced Oral Bioavailability in Rats. J Pharm Sci 2023; 112:535-543. [PMID: 36058257 DOI: 10.1016/j.xphs.2022.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/23/2022] [Accepted: 08/28/2022] [Indexed: 01/18/2023]
Abstract
Andrographolide (AGL) is the major component of Andrographispaniculata. The poor water solubility and low dissolution strongly affect its oral absorption. Liquisolid technology has been used to improve its dissolution and oral bioavailability. Liquisolid powders of AGL (AGL-LS-PSG) were obtained by firstly dissolving AGL in the mixture of NMP, PEG 6000 and Soluplus®, and solidified by absorption of the blend in porous starch. Angle of repose, Carr index and Hauser ratio presented good powder fluidity and compressibility characteristics of AGL-LS-PSG. The results of optical microscopic observation, PXRD and DSC analysis indicated that AGL has been completely adsorbed in porous starch granules and existed in an amorphous or molecularly dispersing state. AGL-LS-PSG can obviously increase the drug dissolution rate compared to commercial guttate pills and raw drug. In vivo pharmacokinetic behavior of AGL-LS-PSG was investigated following a single oral administration to rats. The Cmax (0.37 ± 0.06 μg mL-1) and AUC0-2h (13.55 ± 2.67 μg h mL-1) of AGL-LS-PSG were evidently increased compared to commercial guttate pills (Cmax = 0.30 ± 0.21 μg mL-1, AUC0-2h = 9.88 ± 3.57 μg h mL-1). This study indicated great potential of liquisolid technology in effectively improving the dissolution and bioavailability of AGL.
Collapse
Affiliation(s)
- M K Liu
- School of Pharmacy, School of Pharmacy, Shenyang Pharmaceutical University, Benxi, 117004, PR China
| | - H L Chen
- School of Pharmacy, School of Pharmacy, Shenyang Pharmaceutical University, Benxi, 117004, PR China
| | - L L Chen
- School of Pharmacy, School of Pharmacy, Shenyang Pharmaceutical University, Benxi, 117004, PR China
| | - H Jiang
- School of Pharmacy, School of Pharmacy, Shenyang Pharmaceutical University, Benxi, 117004, PR China
| | - R Liu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi, 117004, PR China
| | - Z C Pei
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi, 117004, PR China
| | - K Li
- Clinical Pharmacology Laboratory, Henan Province People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, 450003, PR China.
| | - Z P Wei
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, PR China
| | - H Xu
- School of Pharmacy, School of Pharmacy, Shenyang Pharmaceutical University, Benxi, 117004, PR China.
| |
Collapse
|
3
|
Combining Liquisolid and Co-grinding Techniques to Enhance the Dissolution Rate of Celecoxib. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09641-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Abstract
Purpose
The classic liquisolid technique is used to enhance the dissolution rate of poorly water-soluble drugs, but in some cases, it is impossible to reach the desired dissolution rate using this technique alone. Therefore, a novel approach using a combination of ball milling and liquisolid technology was investigated to improve the dissolution rate for celecoxib.
Methods
First, celecoxib was dispersed in a liquid vehicle (PEG 200), then ground in a ball mill for 3 h. Other excipients, including PVP, microcrystalline cellulose as the carrier powder, and silica as the coating material, were added to the mortar. Dissolution testing was carried out in simulated intestinal fluid (SIF) and simulated gastric fluid (SGF) media. The effects of aging on the hardness and dissolution profile were also studied. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) was used to identify changes in the crystallinity or complex formation.
Results
The novel formulations showed a higher dissolution rate than the conventional tablet or classic liquisolid formulations. Aging did not affect the hardness and dissolution profiles of the liquisolid compacts. The DSC and XRD results suggested that the enhanced dissolution rate is not caused by the formation of any complexes and reduction in crystallinity degree may contribute to the dissolution enhancement. The enhanced dissolution rate is attributed to the elevated specific surface area of the drug in the liquisolid state.
Conclusion
The results showed that liquisolid technology combined with ball milling is an efficient tool for enhancing the dissolution of poorly water-soluble drugs.
Collapse
|
4
|
Comparative Study of Powder Carriers Physical and Structural Properties. Pharmaceutics 2022; 14:pharmaceutics14040818. [PMID: 35456652 PMCID: PMC9032780 DOI: 10.3390/pharmaceutics14040818] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 02/06/2023] Open
Abstract
High specific surface area (SSA), porous structure, and suitable technological characteristics (flow, compressibility) predetermine powder carriers to be used in pharmaceutical technology, especially in the formulation of liquisolid systems (LSS) and solid self-emulsifying delivery systems (s-SEDDS). Besides widely used microcrystalline cellulose, other promising materials include magnesium aluminometasilicates, mesoporous silicates, and silica aerogels. Clay minerals with laminar or fibrous internal structures also provide suitable properties for liquid drug incorporation. This work aimed at a comparison of 14 carriers’ main properties. Cellulose derivatives, silica, silicates, and clay minerals were evaluated for flow properties, shear cell experiments, SSA, hygroscopicity, pH, particle size, and SEM. The most promising materials were magnesium aluminometasilicates, specifically Neusilin® US2, due to its proper flow, large SSA, etc. Innovative materials such as FujiSil® or Syloid® XDP 3050 were for their properties evaluated as suitable. The obtained data can help choose a suitable carrier for formulations where the liquid phase is incorporated into the solid dosage form. All measurements were conducted by the same methodology and under the same conditions, allowing a seamless comparison of property evaluation between carriers, for which available company or scientific sources do not qualify due to different measurements, conditions, instrumentation, etc.
Collapse
|
5
|
Daravath B, Somalanka S. Enhancement of dissolution rate of racecadotril by liquisolid compact technology. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e21044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
|
6
|
Carvalho GC, Araujo VHS, Fonseca-Santos B, de Araújo JTC, de Souza MPC, Duarte JL, Chorilli M. Highlights in poloxamer-based drug delivery systems as strategy at local application for vaginal infections. Int J Pharm 2021; 602:120635. [PMID: 33895295 DOI: 10.1016/j.ijpharm.2021.120635] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 01/02/2023]
Abstract
Infectious diseases related to the vagina include diseases caused by the imbalance of the vaginal flora and by sexually transmitted infections. Some of these present themselves as a public health problem due to the lack of efficient treatment that leads to their complete cure, and others due to the growing resistance to drugs used in therapy. In this sense, new treatment strategies are desirable, with vaginal administration rout being a great choice since can bypass first-pass metabolism and decrease drug interactions and adverse effects. However, it is worth highlighting limitations related to patient's discomfort at application time. Thereby, the use of poloxamer-based drug delivery systems is desirable due its stimuli-sensitive characteristic. Therefore, the present review reports a brief overview of poloxamer properties, biological behavior and advances in poloxamer applications in controlled drug release systems for infectious diseases related to the vagina treatment and prevention.
Collapse
Affiliation(s)
- Gabriela Corrêa Carvalho
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, Brazil
| | - Victor Hugo Sousa Araujo
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, Brazil
| | - Bruno Fonseca-Santos
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), 13083-871 Campinas, Brazil
| | | | | | - Jonatas Lobato Duarte
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), 14800-903 Araraquara, Brazil.
| |
Collapse
|
7
|
El-Say KM, Ahmed TA, Ahmed OAA, Elimam H. Enhancing the Hypolipidemic Effect of Simvastatin in Poloxamer-Induced Hyperlipidemic Rats via Liquisolid Approach: Pharmacokinetic and Pharmacodynamic Evaluation. AAPS PharmSciTech 2020; 21:223. [PMID: 32749629 DOI: 10.1208/s12249-020-01754-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/08/2020] [Indexed: 12/26/2022] Open
Abstract
This study aimed to enhance the dissolution of simvastatin (SMV) through its formulation in liquisolid tablets (LSTs) to improve its bioavailability and hypolipidemic activity after oral administration. SMV-LSTs were optimized using Box-Behnken design to maximize the rate and extent of SMV dissolution. The optimized SMV-LST was evaluated for pharmacokinetic parameters and potential hypolipidemic activity on induced hyperlipidemic rats. The dissolution parameters revealed a shortening of mean dissolution time from 10.99 to 6.82 min, increasing of dissolution rate during the first 10 min from 1253.15 to 1667.31 μg/min, and enhancing of dissolution efficiency after 60 min from 71.92 to 86.93% for SMV-LSTs versus the commercial SMV tablets. The obtained data reflected an improvement in the relative bioavailability of SMV with 148.232% which was confirmed by the significant reduction of the levels of circulating total cholesterol, triglycerides that reached the normal level after 12 h. In particular, the optimized SMV-LSTs reduced serum low-density lipoproteins (LDL) by 44.6% which was significantly different from the commercial SMV tablets. In contrast, the level of serum high-density lipoprotein (HDL) was significantly augmented after 4 h in rats treated with the optimized SMV-LSTs by 47.6%. Finally, the optimized SMV-LSTs showed a significant lower atherosclerotic index value which could maximize its potential in decreasing the risk of coronary disease and atherosclerosis. Overall enhancement in pharmacokinetics and pharmacodynamics in comparison with the commercial tablets confers the potential of the liquisolid approach as a promising alternative for improved oral bioavailability, hypolipidemic, and cardioprotective effects of SMV. Graphical abstract.
Collapse
|
8
|
Prajapat MD, Butani SB, Gohel MC. Liquisolid: A promising technique to improve dissolution efficiency and bioavailability of poorly water soluble nimodipine. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
9
|
Said Suliman A, Anderson RJ, Elkordy AA. Preparation of novel optimum liquisolid compacts via incorporating water granulation process to enhance the powder characterizations and dissolution behavior of a poorly soluble drug: Norfloxacin. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.05.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
10
|
Allou NB, Saikia J, Bordoloi P, Yadav A, Pal M, Goswamee RL. Layered double hydroxide and microwave assisted functionalized carbon based nanocomposites as controlled release vehicle for antibiotics. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
11
|
Al-Okbi SY, Mohamed DA, Hamed TES, Abd El-Alim SH, Kassem AA, Mostafa DM. Application of liquisolid technology for promoting the renoprotective efficacy of walnut extracts in chronic renal failure rat model. Drug Dev Ind Pharm 2018; 45:32-42. [PMID: 30132727 DOI: 10.1080/03639045.2018.1515219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Chronic renal failure (CRF) is among the major health problems that could lead to increased morbidity and mortality among population. 'Nutraceuticals' is an emerging field for natural agents from plant foods that could reduce the progression of such disease. Many newly developed drugs are having bioavailability problems owing to their water insolubility. Liquisolid technique is one of the promising technological approaches to increase solubility and hence, drug absorption. The aim of the present research is to prepare and evaluate the renoprotective effect of the walnut extracts liquisolid formulations in CRF rat model. Saturation solubility study claimed PEG 400 and Tween 20 as good solubilizers for walnut extracts, thus chosen for preparation. The angle of slide was determined for the carrier; microcrystalline cellulose and coating material; silicon dioxide and liquid load factor was evaluated. Eight liquisolid systems were prepared employing 25% and 50% of liquid medication. Their flow and compressibility parameters showed good properties. Dissolution study was more in favor of formulations prepared using PEG 400. Of these, formulation F8 comprising carrier/coat ratio (10:1) and 50% liquid medication, showing superior dissolution properties was selected to perform stability and in-vivo evaluations. Two CRF induced rat groups received F8 at two oral doses (50 and 100 mg/kg). Biochemical and nutritional parameters were compared with both normal and CRF control rats. Results showed improvement of renal function, oxidative stress, antioxidant and inflammatory biomarkers as well as increased appetite and body weight gain on administration of both doses of walnut liquisolid formulation, F8.
Collapse
Affiliation(s)
- Sahar Youssef Al-Okbi
- a Food Sciences and Nutrition Department , National Research Centre , Dokki , Cairo , Egypt
| | - Doha Abdou Mohamed
- a Food Sciences and Nutrition Department , National Research Centre , Dokki , Cairo , Egypt
| | - Thanaa El-Sayed Hamed
- a Food Sciences and Nutrition Department , National Research Centre , Dokki , Cairo , Egypt
| | | | - Ahmed Alaa Kassem
- b Pharmaceutical Technology Department , National Research Centre , Dokki , Cairo , Egypt
| | - Dina Mahmoud Mostafa
- b Pharmaceutical Technology Department , National Research Centre , Dokki , Cairo , Egypt
| |
Collapse
|
12
|
Solaiman A, Tatari AK, Elkordy AA. Naproxen Microparticulate Systems Prepared Using In Situ Crystallisation and Freeze-Drying Techniques. AAPS PharmSciTech 2017; 18:1438-1446. [PMID: 28004343 DOI: 10.1208/s12249-016-0682-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 11/29/2016] [Indexed: 11/30/2022] Open
Abstract
Poor drug solubility and dissolution rate remain to be one of the major problems facing pharmaceutical scientists, with approximately 40% of drugs in the industry categorised as practically insoluble or poorly water soluble. This in turn can lead to serious delivery challenges and poor bioavailability. The aim of this research was to investigate the effects of the surfactants, poloxamer 407 (P407) and caprol® PGE 860 (CAP), at various concentrations (0.1, 0.5, 1 and 3% w/v) on the enhancement of the dissolution properties of poorly water-soluble drug, naproxen, using in situ micronisation by solvent change method and freeze-drying. The extent at which freeze-drying influences the dissolution rate of naproxen microcrystals is investigated in this study by comparison with desiccant-drying. All formulations were evaluated and characterised using particle size analysis and morphology, in vitro dissolution studies, differential scanning calorimetry (DSC), and Fourier transform infra-red (FT-IR) spectroscopy. An increase in poloxamer 407 concentration in freeze-dried formulations led to enhancement of drug dissolution compared to desiccator-dried formulations, naproxen/caprol® PGE 860 formulations and untreated drug. DSC and FT-IR results show no significant chemical interactions between drug and poloxamer 407, with only very small changes to drug crystallinity. On the other hand, caprol® PGE 860 showed some interactions with drug components, alterations to the crystal lattice of naproxen, and poor dissolution profiles using both drying methods, making it a poor choice of excipient.
Collapse
|
13
|
Lu M, Xing H, Jiang J, Chen X, Yang T, Wang D, Ding P. Liquisolid technique and its applications in pharmaceutics. Asian J Pharm Sci 2016; 12:115-123. [PMID: 32104320 PMCID: PMC7032177 DOI: 10.1016/j.ajps.2016.09.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/11/2016] [Accepted: 09/27/2016] [Indexed: 12/01/2022] Open
Abstract
Most of the newly developed drug candidates are lipophilic and poorly water-soluble. Enhancing the dissolution and bioavailability of these drugs is a major challenge for the pharmaceutical industry. Liquisolid technique, which is based on the conversion of the drug in liquid state into an apparently dry, non-adherent, free flowing and compressible powder, is a novel and advanced approach to tackle the issue. The objective of this article is to present an overview of liquisolid technique and summarize the progress of its applications in pharmaceutics. Low cost, simple processing and great potentials in industrial production are main advantages of this approach. In addition to the enhancement of dissolution rate of poorly water-soluble drugs, this technique is also a fairly new technique to effectively retard drug release. Furthermore, liquisolid technique has been investigated as a tool to minimize the effect of pH variation on drug release and as a promising alternative to conventional coating for the improvement of drug photostability in solid dosage forms. Overall, liquisolid technique is a newly developed and promising tool for enhancing drug dissolution and sustaining drug release, and its potential applications in pharmaceutics are still being broadened.
Collapse
Affiliation(s)
- Mei Lu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Haonan Xing
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Jingzheng Jiang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiao Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Tianzhi Yang
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, ME, USA
| | - Dongkai Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Pingtian Ding
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| |
Collapse
|
14
|
Lu M, Xing H, Yang T, Yu J, Yang Z, Sun Y, Ding P. Dissolution enhancement of tadalafil by liquisolid technique. Pharm Dev Technol 2016; 22:77-89. [PMID: 27268461 DOI: 10.1080/10837450.2016.1189563] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This study aimed to enhance the dissolution of tadalafil, a poorly water-soluble drug by applying liquisolid technique. The effects of two critical formulation variables, namely drug concentration (17.5% and 35%, w/w) and excipients ratio (10, 15 and 20) on dissolution rates were investigated. Pre-compression tests, including particle size distribution, flowability determination, Fourier transform infrared (FT-IR), differential scanning calorimetry (DSC), X-ray diffractometry (XRD) and scanning electron microscopy (SEM), were carried out to investigate the mechanism of dissolution enhancement. Tadalafil liquisolid tablets were prepared and their quality control tests, dissolution study, contact angle measurement, Raman mapping, and storage stability test were performed. The results suggested that all the liquisolid tablets exhibited significantly higher dissolution rates than the conventional tablets and pure tadalafil. FT-IR spectrum reflected no drug-excipient interactions. DSC and XRD studies indicated reduction in crystallinity of tadalafil, which was further confirmed by SEM and Raman mapping outcomes. The contact angle measurement demonstrated obvious increase in wetting property. Taken together, the reduction of particle size and crystallinity, and the improvement of wettability were the main mechanisms for the enhanced dissolution rate. No significant changes were observed in drug crystallinity and dissolution behavior after storage based on XRD, SEM and dissolution results.
Collapse
Affiliation(s)
- Mei Lu
- a School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| | - Haonan Xing
- a School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| | - Tianzhi Yang
- b Department of Basic Pharmaceutical Sciences , School of Pharmacy, Husson University , Bangor , ME , USA
| | - Jiankun Yu
- a School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| | - Zhen Yang
- a School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| | - Yanping Sun
- a School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| | - Pingtian Ding
- a School of Pharmacy, Shenyang Pharmaceutical University , Shenyang , China
| |
Collapse
|
15
|
Competence of raloxifene hydrochloride loaded liquisolid compacts for improved dissolution and intestinal permeation. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.10.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
16
|
Li Y, Bi HY, Wang GW, Wang N, Chen CX, Li ZZ, Fan XM. Intercalation of Norfloxacin into Layered Double Hydroxides by Delamination/Restacking Process and its Controlled-Release Property. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2015.1025906] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
17
|
Vraníková B, Gajdziok J, Doležel P. The effect of superdisintegrants on the properties and dissolution profiles of liquisolid tablets containing rosuvastatin. Pharm Dev Technol 2015; 22:138-147. [PMID: 26401959 DOI: 10.3109/10837450.2015.1089900] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT The preparation of liquisolid systems (LSS) represents a promising method for enhancing a dissolution rate and bioavailability of poorly soluble drugs. The release of the drug from LSS tablets is affected by many factors, including the disintegration time. OBJECTIVE The evaluation of differences among LSS containing varying amounts and types of commercially used superdisintegrants (Kollidon® CL-F, Vivasol® and Explotab®). MATERIALS AND METHODS LSS were prepared by spraying rosuvastatin solution onto Neusilin® US2 and further processing into tablets. Varying amounts of superdisintegrants were used and the differences among LSS were evaluated. The multiple scatter plot method was used to visualize the relationships within the obtained data. RESULTS AND DISCUSSION All disintegrants do not showed negative effect on the flow properties of powder blends. The type and concentration of superdisintegrant had an impact on the disintegration time and dissolution profiles of tablets. Tablets with Explotab® showed the longest disintegration time and the smallest amount of released drug. Fastest disintegration and dissolution rate were observed in tablets containing Kollidon® CL-F (≥2.5% w/w). Also tablets with Vivasol® (2.5-4.0% w/w) showed fast disintegration and complete drug release. CONCLUSION Kollidon® CL-F and Vivasol® in concentration ≥2.5% are suitable superdisintegrants for LSS with enhanced release of drug.
Collapse
Affiliation(s)
- Barbora Vraníková
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences , Palackeho Trida 1/3 , Brno , Czech Republic
| | - Jan Gajdziok
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences , Palackeho Trida 1/3 , Brno , Czech Republic
| | - Petr Doležel
- a Department of Pharmaceutics, Faculty of Pharmacy , University of Veterinary and Pharmaceutical Sciences , Palackeho Trida 1/3 , Brno , Czech Republic
| |
Collapse
|