TAILORING OF SOLUBILITY OF IBUPROFEN IN THE PRESENCE OF HYDROPHILIC EXCIPIENTS IN WATER-ETHANOL MIXTURES BY CRYSTALLIZATION METHOD
Objective: The objective of this study was to determine the effect of some commonly used pharmaceutical excipients on the solubility of Ibuprofen (Ibu) in a co-solvent consisting of water (W) and ethanol (E). Methods: The Ibu solubility studies were carried out by dissolving the drug to equilibrium...
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Published in | International journal of applied pharmaceutics pp. 102 - 109 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
07.03.2022
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Online Access | Get full text |
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Abstract | Objective: The objective of this study was to determine the effect of some commonly used pharmaceutical excipients on the solubility of Ibuprofen (Ibu) in a co-solvent consisting of water (W) and ethanol (E).
Methods: The Ibu solubility studies were carried out by dissolving the drug to equilibrium into aqueous ethanol solvents at a fixed temperature. The temperature of the water bath was kept constant (±0.1 °C of the desired temperatures 10, 25 and 40 °C). The solubility of Ibu was measured by using UV spectrophotometry.
Results: The low solubility (~ 50 ppm) of Ibu without excipients in water (zero ethanol) was observed. However, Ibu solubility was increased near exponentially with excipient containing co-solvent system. The maximum solubility of Ibu (1726 ppm) was occurred in a co-solvent containing 1.52% leucine, 5.22% mannitol, 0.25% HPMC, 1.55% Pl F127 and 10.75% w/w ethanol. The phase separation between 34% and 63% w/w E/(E+W) was observed at 40 °C. The individual effect of Pl F127 on enhancing the Ibu solubility was significant.
Conclusion: The individual addition of leucine, mannitol and HPMC has limited impact on the solubility of Ibu. However, the effect of combining these excipients together on Ibu solubility is significantly high. |
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AbstractList | Objective: The objective of this study was to determine the effect of some commonly used pharmaceutical excipients on the solubility of Ibuprofen (Ibu) in a co-solvent consisting of water (W) and ethanol (E).
Methods: The Ibu solubility studies were carried out by dissolving the drug to equilibrium into aqueous ethanol solvents at a fixed temperature. The temperature of the water bath was kept constant (±0.1 °C of the desired temperatures 10, 25 and 40 °C). The solubility of Ibu was measured by using UV spectrophotometry.
Results: The low solubility (~ 50 ppm) of Ibu without excipients in water (zero ethanol) was observed. However, Ibu solubility was increased near exponentially with excipient containing co-solvent system. The maximum solubility of Ibu (1726 ppm) was occurred in a co-solvent containing 1.52% leucine, 5.22% mannitol, 0.25% HPMC, 1.55% Pl F127 and 10.75% w/w ethanol. The phase separation between 34% and 63% w/w E/(E+W) was observed at 40 °C. The individual effect of Pl F127 on enhancing the Ibu solubility was significant.
Conclusion: The individual addition of leucine, mannitol and HPMC has limited impact on the solubility of Ibu. However, the effect of combining these excipients together on Ibu solubility is significantly high. |
Author | AFROSE, AFRINA T. WHITE, EDWARD ALHAMHOOM, YAHYA HOWES, TONY RASHID, MD ABDUR |
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