Can you take Amiloride and Hydrochlorothiazide while pregnant?
Last updated September 7, 2026.
**Amiloride and hydrochlorothiazide is not a first-choice medicine in pregnancy, and most people are switched to a different blood pressure drug before or early in pregnancy.** Hydrochlorothiazide reduces the volume of fluid in your bloodstream, and use later in pregnancy has been linked to low platelets, low sodium, and low blood sugar in newborns. Diuretics are also not used to treat the ordinary leg and foot swelling that comes with pregnancy. If you take this combination for chronic high blood pressure, your clinician will usually move you to labetalol, nifedipine, or methyldopa. Keep taking your current dose until you have that conversation, because losing blood pressure control creates its own problems for you and the pregnancy. If you took a few doses before you knew you were pregnant, that short exposure is not a reason to panic.
What to do
- Call before you stop: Ask your prescriber for a switch plan rather than stopping the pill on your own.
- Plan ahead: If you are trying to conceive, change medicines before pregnancy instead of after a positive test.
- Know the usual replacements: Labetalol, nifedipine, and methyldopa are the blood pressure medicines most often used in pregnancy.
- Skip it for swelling: Puffy ankles in pregnancy are treated with rest, leg elevation, and movement, not with diuretics.
- Review every prescription: ACE inhibitors and ARBs are also stopped in pregnancy, so have your full medicine list checked at once.
- Watch for warning signs: Seek care the same day for a severe headache, vision changes, upper belly pain, or sudden swelling of the face and hands.
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