Hydroxychloroquine (Plaquenil) and Ketamine Therapy | Tovani Health
Plaquenil (Hydroxychloroquine) — DMARD (lupus, rheumatoid arthritis)
Verdict at Tovani Health
Fully compatible; ketamine itself does not meaningfully prolong QT.
Hydroxychloroquine and ketamine have no clinically significant interaction. The earlier framing here flagged QT prolongation, but ketamine at psychiatric (subanesthetic) doses is not a meaningful QT-prolonging drug in the published literature. Hydroxychloroquine's own modest QT effect is independent of KAP. Maintain your usual ophthalmology screening for retinopathy.
If you take Plaquenil 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 Plaquenil interacts with ketamine
Hydroxychloroquine is a 4-aminoquinoline with broad immunomodulatory effects. Used for lupus, rheumatoid arthritis, and porphyria cutanea tarda. Modest QT prolongation potential.
What we do at intake
Disclose dose and any other QT-prolonging medications. Maintain your usual ophthalmology monitoring (retinopathy screening).
Bottom line
Hydroxychloroquine and ketamine have no clinically significant interaction. The earlier framing here flagged QT prolongation, but ketamine at psychiatric (subanesthetic) doses is not a meaningful QT-prolonging drug in the published literature. Hydroxychloroquine's own modest QT effect is independent of KAP. Maintain your usual ophthalmology screening for retinopathy.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Plaquenil (Hydroxychloroquine) 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.