(oxybutynin) Gel 3%, for Topical Use
Oxybutynin is an antispasmodic, antimuscarinic agent. ANTUROL (oxybutynin) gel 3% is a topical, homogeneous, very lightly to moderately opalescent, translucent colorless to slightly colored gel, without particles hydroalcoholic gel containing 30 mg oxybutynin per gram of gel. ANTUROL is available in a 0.92 gram (1 mL) unit dose that contains 28 mg oxybutynin. Oxybutynin is delivered as a racemate of R- and S-isomers. Chemically, oxybutynin base is d, 1 (racemic) 4-(Diethylamino)-2-butynyl (±)-α- phenylcyclohexaneglycolate.
The empirical formula of oxybutynin base is C22H31NO3. Its structural formula is:
Oxybutynin is a white powder with a molecular weight of 357. Inactive ingredients in ANTUROL are diethylene glycol monoethyl ether, NF; alcohol, USP; hydroxypropyl cellulose, NF; propylene glycol, NF; butylated hydroxytoluene, NF; HC1 0.1 M, NF; and purified water, USP.
Last reviewed on RxList: 1/3/2012
This monograph has been modified to include the generic and brand name in many instances.
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