%0 Journal Article
%T Design and Development of Solid Self Emulsifying Osmotic Delivery System of Nifedipine
%A Nilesh Bagul
%A Vineet Patel
%A Aliasgar Shahiwala
%A Manju Misra
%J Archives of Pharmacy Practice
%@ 2320-5210
%D 2012
%V 3
%N 2
%P 128-135
%X Objectives: In order to enhance solubility and to obtain controlled release characteristics, preparation of nifedipine has been made into a osmotic pump tablet which includes Gelucire 44/14, Lutrol F127, Transcutol P, silicon dioxide, lactose, mannitol, citric acid, and sodium bicarbonate. Material and methods: The developed dosage form was evaluated for particle size, solid state properties and release profile. Effect of orifice size and amount of plasticizers on drug release was also studied. Results: The results revealed that Self-emulsifying osmotic pump tablet (SEOPT) has not only provided improvement in solubility of nifedipine by self-emulsifying effect (SEDDS) but also controlled release due to elementary osmotic pump system. The particle size analysis revealed no difference in the droplet size of liquid SEDDS & reconstituted SEDDS. Conclusion: Release studies revealed that nifedipine followed zero order release profile for 12 h independent of agitational intensity with cumulative release of 83.85%. The in vitro release profiles of the optimized system & commercialized conventional tablet (Nicardia ® Retard 20) in different amount of sodium lauryl sulphate (SLS) were also compared.
%U https://archivepp.com/article/design-and-development-of-solid-self-emulsifying-osmotic-delivery-system-of-nifedipine