Hydrochlorothiazide (HCTZ) and Ketamine Therapy | Tovani Health
Microzide (Hydrochlorothiazide) (also: HCTZ) — Thiazide diuretic
Verdict at Tovani Health
Fully compatible with KAP.
Hydrochlorothiazide and ketamine have no clinically significant interaction. As a thiazide diuretic, HCTZ produces stable steady-state BP lowering rather than acute session-day fluctuations. The hydration suggestion is general good practice for any KAP patient, not HCTZ-specific.
If you take Microzide 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 Microzide interacts with ketamine
HCTZ inhibits sodium reabsorption in the distal tubule, producing diuresis and BP reduction. No overlap with ketamine pharmacology.
What we do at intake
Continue as normal. Stay reasonably hydrated on session day, which is general advice for KAP rather than something HCTZ-specific.
Bottom line
Hydrochlorothiazide and ketamine have no clinically significant interaction. As a thiazide diuretic, HCTZ produces stable steady-state BP lowering rather than acute session-day fluctuations. The hydration suggestion is general good practice for any KAP patient, not HCTZ-specific.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Microzide (Hydrochlorothiazide) 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 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.