Your Side Effects May IncludeNitroglycerin (Nitrostat) side effects
This side effect is printed on the FDA label for Nitroglycerin. It was a question in our daily quiz, where you pick the real side effect from four choices.
A dangerous blood pressure drop if taken with Viagra or Cialis
The combination can drop blood pressure so low it's dangerous, which is why it's forbidden on the label.
“PDE-5-Inhibitors such as avanafil, sildenafil, vardenafil, and tadalafil have been shown to potentiate the hypotensive effects of organic nitrates.”
Tell every doctor and pharmacist you use it, and never combine it with erectile dysfunction pills.
2,304 reports to the FDA's adverse event system mention low blood pressure. A report is not proof the drug caused it. See the query
From quiz No. 17 · October 11, 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.