Pharmaceutical preparation comprising a cardiac glycoside with a polymer coating
Coating for pharmaceutical dosage forms
Medicine based on fenofibrate, and a method of preparing it
Sustained-release formulation and production thereof Patent #: 4828840
ApplicationNo. 835798 filed on 02/14/1992
US Classes:424/482, Containing solid synthetic polymers424/78.24, N-Vinyl-2-pyrrolidone424/440, Candy, candy coated or chewing gum424/441, Chewable tablet or wafer424/472, Layered unitary dosage forms424/480, Cellulose or derivative424/494, Cellulose derivatives424/495, Ethyl cellulose424/497Containing solid synthetic polymers
ExaminersPrimary: Page, Thurman K.
Assistant: Hulina, Amy
Attorney, Agent or Firm
International ClassesA61K 009/32
AbstractThe present invention pertains to semi-enteric drug delivery systems which comprise (a) an inert core, (b) a first coating layer over the core comprising a medicament, and (c) a second coating layer over the first coating layer comprising a mixture of methacrylic acid copolymer, type C, and povidone present in a ratio by weight of from about 2:1 to about 24:1, respectively.