Venlafaxine (Effexor XR) side effects
This side effect is printed on the FDA label for Venlafaxine. It was a question in our daily quiz, where you pick the real side effect from four choices.
High blood pressure that doesn't go away
The rise can be dose-related, so blood pressure checks are recommended.
“Sustained hypertension may occur.”
Get your blood pressure checked regularly. Don't stop suddenly, and watch for worsening mood or suicidal thoughts.
3,114 reports to the FDA's adverse event system mention high blood pressure. A report is not proof the drug caused it. See the query
From quiz No. 19 · October 13, 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.