Dutasteride (Avodart) and Ketamine Therapy | Tovani Health
Avodart (Dutasteride) — 5-alpha reductase inhibitor (dual isoenzyme; BPH)
Verdict at Tovani Health
Compatible; same post-treatment persistent-effect concerns as finasteride, with longer half-life.
Dutasteride and ketamine are compatible. Same considerations as finasteride with two differences: dutasteride inhibits both type 1 and type 2 5-alpha reductase (broader effect than finasteride which is mainly type 2), and the half-life is much longer (~5 weeks vs 5-6 hours). This means dutasteride remains active for months after the last dose. The post-treatment persistent depression / sexual dysfunction concerns mirror finasteride.
If you take Avodart regularly and are considering at-home ketamine therapy, the combination is safe with monitoring or dose adjustment. This page covers the brief pharmacologic context and what we do at intake.
How Avodart interacts with ketamine
Dutasteride is a dual 5-alpha reductase inhibitor. Long half-life and broader isoenzyme inhibition produce more thorough DHT suppression than finasteride.
What we do at intake
Disclose dose and how long you have been on it. Tell us about any mood or sexual side effects. The long half-life means recent discontinuation still has the drug on board.
Bottom line
Dutasteride and ketamine are compatible. Same considerations as finasteride with two differences: dutasteride inhibits both type 1 and type 2 5-alpha reductase (broader effect than finasteride which is mainly type 2), and the half-life is much longer (~5 weeks vs 5-6 hours). This means dutasteride remains active for months after the last dose. The post-treatment persistent depression / sexual dysfunction concerns mirror finasteride.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Avodart (Dutasteride) at intake. The eligibility check takes 5 minutes and gives you an honest answer about whether at-home ketamine fits your specific situation.
FL and NJ residents only. Benjamin Soffer, DO — Tovani Health.
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 19, 2026. Dr. Soffer is a board-certified physician (American Board of Internal Medicine) licensed in Florida and New Jersey, prescribing at-home ketamine therapy through Tovani Health.
This page is general information about how this medication interacts with at-home ketamine therapy at Tovani Health. It is not a substitute for medical advice from your prescribing physician about your specific situation. Always discuss medication changes with the doctor who prescribed them.