An erodible pharmaceutical composition providing a unique zero order controlled release profile contains a therapeutically active substance having a water solubility not greater than 80 mg/mL in water at 25°C, a hydroxypropyl methylcellulose derivative and erosion modifiers depending on drug solubility and drug loading, such as lactose and polyoxyalkylene derivatives of propylene glycol, as well as other inert materials such as binders and lubricants.
N-substituted diphenylpiperidines and antiobesity use thereof
申请人:Hoffmann-La Roche Inc.
公开号:US04632925A1
公开(公告)日:1986-12-30
Compounds of the formula ##STR1## wherein R.sub.1 is ##STR2## the asterisk denotes the specific bonding orientation to the piperidine moiety; R.sub.2 is alkylene or --CO--(CH.sub.2).sub.n -- wherein n is 0 to 11; R.sub.3 and R.sub.4, independently, are hydrogen, halogen or lower alkoxy; and HET is pyridinyl, pyrimidinyl or imidazolyl, and salts thereof with pharmaceutically acceptable acids, are described. The compounds of formula I exhibit insulin lowering activity and are useful as antiobesity agents.