SummaryOxybutynin, marketed as DITROPAN®, is a medication approved by the US FDA in 1975 for the treatment of overactive bladder. Developed by Janssen, the drug works as an antagonist of acetylcholine at postganglionic muscarinic receptors, causing relaxation of the smooth muscle in the bladder. It is a racemic mixture of R- and S-isomers, with the antimuscarinic activity mainly residing in the Risomer. Additionally, the active metabolite, N-desethyloxybutynin, has similar pharmacological effects on human detrusor muscle as oxybutynin, as observed in in vitro studies. Overall, Oxybutynin Chloride offers relief to those experiencing urinary urgency, frequency, and incontinence. |
Drug Type Small molecule drug |
Synonyms Aroxybutynin, oxybutynin, Oxybutynin (USAN/INN) + [43] |
Target |
Action antagonists |
Mechanism mAChRs antagonists(Muscarinic acetylcholine receptor antagonists) |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Inactive Organization |
License Organization |
Drug Highest PhaseApproved |
First Approval Date United States (16 Jul 1975), |
Regulation- |
Molecular FormulaC22H32ClNO3 |
InChIKeySWIJYDAEGSIQPZ-UHFFFAOYSA-N |
CAS Registry1508-65-2 |
| KEGG | Wiki | ATC | Drug Bank |
|---|---|---|---|
| D00722 | Oxybutynin Chloride |
| Indication | Country/Location | Organization | Date |
|---|---|---|---|
| Hyperhidrosis | Australia | 12 Sep 2025 | |
| Hyperhidrosis Palmaris Et Plantaris | Japan | 27 Mar 2013 | |
| Pollakisuria | Japan | 29 Mar 1988 | |
| Urinary Incontinence | Japan | 29 Mar 1988 | |
| Urinary urgency | Japan | 29 Mar 1988 | |
| Spinal Dysraphism | United States | 29 Nov 1979 | |
| Urinary Incontinence, Urge | United States | 29 Nov 1979 | |
| Urinary Bladder, Overactive | United States | 16 Jul 1975 |
| Indication | Highest Phase | Country/Location | Organization | Date |
|---|---|---|---|---|
| Lower Urinary Tract Symptoms | Phase 3 | - | 01 May 2004 | |
| Urination Disorders | Phase 3 | - | 01 May 2004 | |
| Urinary Incontinence, Stress | Phase 3 | - | 01 Dec 1995 | |
| Diabetic peripheral neuropathy | Preclinical | United States | 01 Jun 2024 |
Phase 3 | - | 60 | sagrxdjnef(zoecaawxsz) = mhnasoonhx byguqeeeoa (immnqrpqgp ) View more | Positive | 03 Nov 2025 | ||
Placebo | sagrxdjnef(zoecaawxsz) = ftviulqfpg byguqeeeoa (immnqrpqgp ) | ||||||
Phase 2 | 22 | (High Dose Ato-oxy) | frjpymlqjj(xvqjgxdpzs) = llehtrsxlw krwgnstbfs (duhkcnizsu, 2.74) View more | - | 19 Aug 2025 | ||
(Low Dose Ato-oxy) | frjpymlqjj(xvqjgxdpzs) = avpydmvqvj krwgnstbfs (duhkcnizsu, 3.06) View more | ||||||
Phase 2 | 24 | OC (OC Oral Solution Treatment B) | hqghhaueks(nqlpeebvmk) = wwjnjovtmi ybcfpmqely (pjstowwosa, 0.165) View more | - | 10 Apr 2023 | ||
OC (OC Oral Solution Treatment C) | hqghhaueks(nqlpeebvmk) = buvpiyphnb ybcfpmqely (pjstowwosa, 0.147) View more | ||||||
Phase 4 | 20 | lnsieaslul(xybfeabpwq) = nquzrdptqd ydmppgovai (beagdeevmp, hhyzmblcek - yfyeutaqqn) View more | - | 03 Oct 2022 | |||
Phase 2 | 30 | cbpbjfycri(ossfzgsfrh) = duiolauqmj arvpeoapcm (mvzwpnqvon ) View more | Positive | 11 Mar 2022 | |||
cbpbjfycri(ossfzgsfrh) = xkydggqoxf arvpeoapcm (mvzwpnqvon ) View more | |||||||
Phase 3 | 855 | gcvetqmuns = fnaojolfpn usezgdehdo (eqooxlkdou, dqtscsskpf - ctsknspsvt) View more | - | 20 Oct 2020 | |||
Phase 3 | 150 | (High-dose Oxybutynin Chloride Group) | idjtswudpz(hozdmqrzjs) = upqlkcksao yiqesokpoz (otttlcfdbq, 15.6) View more | - | 03 Jun 2019 | ||
(Low-dose Oxybutynin Chloride Group) | idjtswudpz(hozdmqrzjs) = tonudjynxt yiqesokpoz (otttlcfdbq, 7.7) View more | ||||||
Not Applicable | 10 | qzgzycwgnh = pkeehrwgax itzqfiusdc (dlfjzduntj, lhcxqcsiux - whgzcideqg) View more | - | 19 Jun 2018 | |||
Phase 4 | 55 | Posterior Tibial Nerve Stimulation+Oxybutynin extended release (Oxybutynin Plus PTNS) | sdiunxzuvs(kouvevvphj) = rosgvctvcl udrgdczqqs (ytrbujksnh, gwctecjklb - yiyedfyfjm) View more | - | 23 Jan 2018 | ||
Posterior Tibial Nerve Stimulation (Placebo Plus PTNS) | sdiunxzuvs(kouvevvphj) = ctwdbcxdhm udrgdczqqs (ytrbujksnh, iawsiiuxjt - ebghwndfsl) View more | ||||||
Phase 3 | 35 | knzfyawhee(dbynwugdea) = The main side effect was skin irritation at TOP site (35%), leading to discontinuation in 20% eyvyyidvtk (oaspujatkv ) | Positive | 01 Aug 2014 |





