Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...
Patent
1975-06-30
1977-03-29
Rose, Shep K.
Drug, bio-affecting and body treating compositions
Identification or warning feature
Taste or smell or chemical irritation to the eye, nose, or...
128130, 128260, 424 14, 424 16, 424 19, 424 22, 424 28, A61K 4700, A61K 902
Patent
active
040149870
ABSTRACT:
A device for the controlled continuous administration of an active agent to an environment of use is disclosed. The device comprises a body of erodible agent release rate controlling material containing an agent dispersed therethrough; the rate controlling material is a hydrophobic poly(carboxylic acid) having one ionizable carboxylic hydrogen for each 8 to 12 carbon atoms, which material erodes at a controlled and continuous rate over a prolonged period of time in response to the environment by a process of carboxylic hydrogen ionization, thereby releasing the dispersed agent at a controlled rate over a prolonged period of time.
REFERENCES:
patent: 3143472 (1964-08-01), Lappas et al.
patent: 3545439 (1970-12-01), Duncan
patent: 3710795 (1973-01-01), Higuchi et al.
patent: 3854480 (1974-12-01), Zaffaroni
Baker Richard W.
Heller Jorge
ALZA Corporation
Ciotti Thomas E.
Mandell Edward L.
Rose Shep K.
Sabatine Paul L.
LandOfFree
Device for delivery of useful agent does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for delivery of useful agent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for delivery of useful agent will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-549240