Claims
- 1. A pharmaceutical composition for the controlled continuous administration of a predetermined dosage of a drug to a living animal comprising a normally solid biodegradable, hydrolyzable polyester resin of diglycollic acid and an unhindered glycol, having a molecular weight sufficiently high so as to provide a polymeric material possessing self-supporting film forming properties, which has dispersed uniformly throughout said polyester resin, a drug formulation.
- 2. A pharmaceutical composition according to claim 1 in which the polyester resin contains a reacted content of up to 25 mole percent of at least one .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid based on the total moles of all of the dicarboxylic acids present.
- 3. A pharmaceutical composition according to claim 1 in the form of a self-supporting film.
- 4. A pharmaceutical composition according to claim 1 in which the polyester resin contains a reacted content of up to 10 mole percent of at least one .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid based on the total moles of all of the dicarboxylic acids present.
Parent Case Info
This is a division of application Ser. No. 582,001, filed May 29, 1975, which in turn was a Division of application Ser. No. 418,138, filed Nov. 21, 1973, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
835,442 |
May 1960 |
UK |
Non-Patent Literature Citations (2)
Entry |
"Polyesters of Diglycollic Acid," Korshak et al., Akademy of Sciences, USSR, Bulletin: Div. Chem. Sci. 1957, 889-893. |
"Polyethylene Terephthalate Fiber," Petakhov et al., Chemical Abstracts 56, 13119f (1962). |
Divisions (2)
|
Number |
Date |
Country |
Parent |
582001 |
May 1975 |
|
Parent |
418138 |
Nov 1973 |
|