EFFECT OF SOME HYDROXYLATED ADDITIVES ON THE MICELLAR SOLUBILIZATION OF METHOTRIMEPRAZINE

Document Type : Original Article

Authors

Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut, Egypt

Abstract

The effect of different hydroxylated compounds on the solubility of Methotrimeprazine in non-ionic surfactant solutions was investigated at two different temperatures. Ethanol, glycerol, polyethylene glycol (PEG) 600 and PEG 4000, mannitol and sorbitol were studied as additives in systems containing Eumulgin C 1000, Eumulgin C 1500, Brij 35 and Brij 58 as the solubilizing surfactants.
Micellar solubilization of Methotrimeprazine was found to be increased in Brij 35 systems with all additives except at low concentration (5% w/v) of PEG 600. It also increased in systems of Brij 58 containing PEG 600, PEG 4000, mannitol and sorbitol.
A marked decrease in micellar solubilization of the drug was effected in systems of Eumulgine and Brij-58 containing ethanol or glycerol due to decreased micellization. Also, PEG 4000, mannitol and sorbitol decreased solubilizing effect of Eumulgine, except for PEG 4000 with Eumulgin C1000 at 35°.