Programmed delivery of verapamil hydrochloride from tablet in a capsule device
Braz. j. pharm. sci; 48 (2), 2012
The aim of the present work was to develop a programmed drug delivery system which would be able to release the drug after 6 h of lag time by use of hydrophilic polymers. The capsule body was made impermeable by use of formaldehyde vapor treatment, while the cap was untreated. The capsule was filled with...