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levothyroxine and warfarin — Drug Interaction

Can you take levothyroxine and warfarintogether? Here's what FDA data shows.

MODERATE

Interaction Found

Taking levothyroxine with warfarin can make warfarin work too well. This increases your risk of bleeding. When you start, stop, or change levothyroxine, warfarin levels can shift.

What to do: Tell your doctor about both medicines. Get blood tests done regularly to check how well warfarin is working. Your doctor may need to adjust your warfarin dose. Do not stop either medicine without talking to your doctor first.

Source: FDA-approved drug labeling via openFDA

About These Medications

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

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

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Other interactions with warfarin

MODERATEatorvastatinMODERATEamlodipineMODERATEomeprazoleMODERATElosartanMODERATEsimvastatinMODERATEsertraline

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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.