09. February 2017

ABSTRACT Objective: Transmucosal buccal drug delivery could be an alternative for oral administration for systemic delivery of Verapamil Hydrochloride (VH), as it has low bioavailability 20 - 35 % due to its extensive rst pass metabo- lism and variable absorption at GIT. Method: Buccal patches of VH were prepared by solvent casting method using bioadhesive polymers HPMC K4M, Carbopol 934P, Chitosan acetate and Okra mucilage isolated from Hibiscus esculantus fruits, in various combinations as...

02. March 2016

Aim: The present work was aimed to formulate Verapamil hydrochloride (HCl) an antihypertensive agent as controlled release (CR) matrix tablets using naturally occurring hydrophobic gum such as dammar gum as a polymer. Methods: In the present investigation, an attempt was made to induce hydrogel formation using polyelectrolytes such as calcium hydroxide and sodium hydroxide with the dammar gum in the presence of dissolution media and to extend the drug release up to 12 h. The hydrogels thus...

17. February 2016

Free hydroxyl groups of glucose monomer of starch substituted with steroyl group by chemical modification leads to the formation of starch stearate (SS). Modification changes the nature from hydrophilic to hydrophobic and thus used as controlled release excipient. In present study, SS was evaluated as release modifying polymer and MCC, Lactose, Dicalcium phosphate (DCP) and combinations of these were used to evaluate effect on drug release of Verapamil hydrochloride (VH) and Diclofenac sodium...

10. January 2016