Cimetidine and Hydroxychloroquine Sulfate: Can You Take Them Together?

Here's what FDA-approved drug labeling shows.

MODERATE

Interaction Found

Taking cimetidine with hydroxychloroquine sulfate together can increase your risk of heart rhythm problems. Both medicines can affect how your heart beats, which could be dangerous when combined.

What to do: Talk to your doctor or pharmacist about these medicines. Don't stop taking either drug on your own. Your doctor may need to switch you to a different medicine or monitor your heart more closely.

Source: FDA-approved drug labeling via openFDA

About These Medications

Cimetidine — View full safety profile, side effects, and all known interactions.

Hydroxychloroquine Sulfate — View full safety profile, side effects, and all known interactions.

Check interactions with other medications:

SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.