Tamoxifen (Nolvadex) and Ketamine Therapy | Tovani Health
Soltamox (Tamoxifen) (also: Nolvadex) — Selective estrogen receptor modulator (SERM)
Verdict at Tovani Health
Fully compatible with KAP.
Tamoxifen and ketamine have no clinically significant interaction. The CYP2D6 issue with certain SSRIs reducing tamoxifen's active metabolite is a tamoxifen-and-SSRI concern, not a tamoxifen-and-ketamine concern; mention it to your oncologist, not us. Continue tamoxifen as prescribed.
If you take Soltamox regularly and are considering at-home ketamine therapy, the combination is generally safe at therapeutic doses. This page covers the brief pharmacologic context and what we do at intake.
How Soltamox interacts with ketamine
Tamoxifen is a SERM activated by CYP2D6 to endoxifen, the active metabolite. Antiestrogen effect in breast tissue. No direct ketamine PK interaction.
What we do at intake
Continue as prescribed. Disclose any SSRI you take (some can reduce tamoxifen efficacy; this is independent of KAP but worth flagging to your oncologist).
Bottom line
Tamoxifen and ketamine have no clinically significant interaction. The CYP2D6 issue with certain SSRIs reducing tamoxifen's active metabolite is a tamoxifen-and-SSRI concern, not a tamoxifen-and-ketamine concern; mention it to your oncologist, not us. Continue tamoxifen as prescribed.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Soltamox (Tamoxifen) 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 17, 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.