Metformin (Glucophage) and Ketamine Therapy | Tovani Health
Glucophage (Metformin) (also: Glumetza, Fortamet) — Biguanide antidiabetic
Verdict at Tovani Health
Fully compatible; no meaningful interaction with KAP.
Metformin and ketamine have no clinically significant interaction. Diabetic patients on metformin can proceed with KAP without medication changes.
If you take Glucophage 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 Glucophage interacts with ketamine
Metformin improves insulin sensitivity and reduces hepatic glucose output. No overlap with ketamine pharmacology.
What we do at intake
Continue as normal. If you experience GI side effects from metformin, take it after meals on session day.
Bottom line
Metformin and ketamine have no clinically significant interaction. Diabetic patients on metformin can proceed with KAP without medication changes.
Frequently Asked Questions
Does ketamine affect blood sugar?
Minimally and transiently. We do not consider it a meaningful concern for stable type 2 diabetes.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Glucophage (Metformin) 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.
Sources
The verdict and clinical guidance on this page are based on the following peer-reviewed literature and FDA prescribing information.
- Ketamine: A Review of Clinical Pharmacokinetics and Pharmacodynamics in Anesthesia and Pain Therapy. Peltoniemi MA, Hagelberg NM, Olkkola KT, Saari TI.. Clinical Pharmacokinetics. 2016. PMID: 27028535
Comprehensive clinical pharmacokinetics/pharmacodynamics review of ketamine including CYP-mediated drug interactions (CYP3A4, CYP2B6).
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 16, 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.