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Tinjacá D, Martínez F, Almanza OA, Jouyban A, Acree WE. Effect of N-Methyl-pyrrolidone (NMP) on the Equilibrium Solubility of Meloxicam in Aqueous Media: Correlation, Dissolution Thermodynamics, and Preferential Solvation. ACS OMEGA 2022; 7:37988-38002. [PMID: 36312332 PMCID: PMC9609070 DOI: 10.1021/acsomega.2c05189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/03/2022] [Indexed: 05/19/2023]
Abstract
Meloxicam is an analgesic and anti-inflammatory drug widely prescribed in current therapeutics that exhibits very low solubility in water. Thus, this physicochemical property has been studied in N-methyl-pyrrolidone (NMP)-aqueous mixtures at several temperatures to expand the solubility database about pharmaceutical compounds in aqueous-mixed solvents. The flask-shake method and UV-vis spectrophotometry were used for meloxicam solubility determination as a function of temperature and mixture composition. Several cosolvency models, including the Jouyban-Acree model, were challenged for equilibrium solubility correlation and/or prediction. The van't Hoff and Gibbs equations were employed here to calculate the apparent standard thermodynamic quantities for the dissolution and mixing processes of this drug in these aqueous mixtures. Inverse Kirkwood-Buff integrals were employed to calculate the preferential solvation parameters of meloxicam by NMP in all mixtures. Meloxicam equilibrium solubility increased with increasing temperature, and maximal solubilities were observed in neat NMP at all temperatures. The mole fraction solubility of meloxicam increased from 1.137 × 10-6 in neat water to 3.639 × 10-3 in neat NMP at 298.15 K. The Jouyban-Acree model correlated the meloxicam solubility in these mixtures very well. Dissolution processes were endothermic and entropy-driven in all cases, except in neat water, where nonenthalpy- nor entropy-driven was observed. Apparent Gibbs energies of dissolution varied from 34.35 kJ·mol-1 in pure water to 7.99 kJ·mol-1 in pure NMP at a mean harmonic temperature of 303.0 K. A nonlinear enthalpy-entropy relationship was observed in the plot of dissolution enthalpy vs dissolution Gibbs energy. Meloxicam is preferentially hydrated in water-rich mixtures but preferentially solvated by NMP in the composition interval of 0.16 < x 1 < 1.00.
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Affiliation(s)
- Darío
A. Tinjacá
- Facultad
de Ciencias, Universidad El Bosque, Av. Cra. 9 No. 131A-02, Bogotá D.C.111156, Colombia
| | - Fleming Martínez
- Grupo
de Investigaciones Farmacéutico-Fisicoquímicas, Departamento
de Farmacia, Facultad de Ciencias, Universidad
Nacional de Colombia, Sede Bogotá, Cra. 30 No. 45-03, Bogotá
D.C.111156, Colombia
- . Tel: +571 3165000 ext
14608
| | - Ovidio A. Almanza
- Grupo
de Física Aplicada, Departamento de Física, Facultad
de Ciencias, Universidad Nacional de Colombia, Sede Bogotá, Cra. 30 No.
45-03, Bogotá D.C.111156, Colombia
| | - Abolghasem Jouyban
- Pharmaceutical
Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz51368, Iran
- Faculty
of Pharmacy, Near East University, P.O. Box 99138, Nicosia, North Cyprus, Mersin10, Turkey
| | - William E. Acree
- Department
of Chemistry, University of North Texas, Denton, Texas76203-5070, United States
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Alshehri S, Shakeel F, Alam P, Jouyban A, Martinez F. Solubility of 6-phenyl-4,5-dihydropyridazin-3(2H)-one in aqueous mixtures of Transcutol and PEG 400 revisited: Correlation and preferential solvation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tinjacá DA, Martínez F, Almanza OA, Jouyban A, Acree WE. Solubility, Dissolution Thermodynamics and Preferential Solvation of Meloxicam in (Methanol + Water) Mixtures. J SOLUTION CHEM 2021. [DOI: 10.1007/s10953-021-01084-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Romdhani A, Osorio IP, Martínez F, Jouyban A, Acree WE. Further calculations on the solubility of trans-resveratrol in (Transcutol® + water) mixtures. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115645] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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