Is hydrochlorothiazide safe if I am breastfeeding?

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Experts say women should avoid hydrochlorothiazide, or HCTZ (Aquazide H, Diaqua, Hydrocot and others), while breastfeeding unless its benefits clearly outweigh the potential risks. HCTZ is known to pass into breast milk, and the danger to a nursing baby is uncertain.

HCTZ is taken to relieve fluid retention. It is used to treat high blood pressure and various heart, liver and kidney disorders. If you are considering breastfeeding, talk to your doctor about whether you should switch from HCTZ to a different drug.