Cycle-length evidence
Oxytocin cycle length: what human studies ran
FDA-approvedAHuman trial evidence
Short answer: Oxytocin has no "cycle". As an approved drug it is used as its label and a prescriber direct.
Treatment and follow-up in human studies
No human study durations are recorded.
What has not been tested
- On-and-off schedules or breaks between courses.
- Repeated courses and long-term exposure beyond the periods listed.
- Oxytocin combined with other compounds, unless a study above says so.
Frequently asked questions
Is there an established Oxytocin cycle length?
No cycle is defined. Oxytocin is an approved drug whose label describes treatment under a prescriber's care; the label, not a cycle, governs duration.
What is the longest human study of Oxytocin?
None is recorded.
Do study durations tell me how long to use something?
No. A study duration is how long investigators administered a compound to selected participants under monitoring. It is not a recommended course, and a break between courses has not been tested for any compound on this site that is not approved.
References
- Drugs@FDA application records for oxytocin injection, including NDA 018248 (Fresenius Kabi USA), NDA 018261 (Pitocin) and ANDA 200219, each with products in Prescription marketing status openFDA / Drugs@FDA. 2026
- PITOCIN (oxytocin injection, USP): prescribing information (Par Health USA, LLC / Endo USA), DailyMed set ID dddcdcc3-cd4d-4573-98ac-9468bea23a8b FDA label (DailyMed). 2026
- International Standard: Prohibited List 2026 (full-document search for "oxytocin" returned no named entry) World Anti-Doping Agency. 2026
- Oxytocin: the great facilitator of life Prog Neurobiol. 2009
- The Oxytocin Receptor: From Intracellular Signaling to Behavior Physiol Rev. 2018
- Intranasal Oxytocin in Children and Adolescents with Autism Spectrum Disorder (SOARS-B) N Engl J Med. 2021
- PubChem compound record for oxytocin (CID 439302; CAS 50-56-6) PubChem. 2026