Hydrochlorothiazide (Microzide) side effects
This side effect is printed on the FDA label for Hydrochlorothiazide. It was a question in our daily quiz, where you pick the real side effect from four choices.
A higher risk of skin cancer
One of the most prescribed blood pressure pills is linked to non-melanoma skin cancer.
From the FDA label
“Instruct patients taking hydrochlorothiazide to protect skin from the sun and undergo regular skin cancer screening.”
Hydrochlorothiazide label, updated Aug 27, 2026 ·
Read the full label on DailyMed
What to watch for
Protect your skin from the sun and get regular skin cancer checks.
723 reports to the FDA's adverse event system mention basal or squamous cell skin cancer. A report is not proof the drug caused it. See the query
From quiz No. 10 · October 4, 2026 · Play that quiz →
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Not medical advice. Don't stop or start a medication because of a quiz. Talk to your doctor or pharmacist. Label text and report counts from openFDA. Not affiliated with any drug maker.