Your Side Effects May Include
Prescription drug · Used for birth control

Yaz side effects

drospirenone and ethinyl estradiol

This side effect is printed on the FDA label for Yaz. It was a question in our daily quiz, where you pick the real side effect from four choices.

Serious heart and blood vessel problems if you smoke

It's a boxed warning. The risk rises with age and how much you smoke, and the label says women over 35 who smoke shouldn't use it.

From the FDA label
“Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptive (COC) use.”
Yaz label, updated May 29, 2025 · Read the full label on DailyMed
What to watch for

Get help right away for leg pain or swelling, chest pain, sudden shortness of breath or vision changes, which can be signs of a blood clot.

13,964 reports to the FDA's adverse event system mention blood clots in the legs or lungs. A report is not proof the drug caused it. See the query

From quiz No. 8 · October 2, 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.