Levothyroxine and Losartan: Can You Take Them Together?

Here's what FDA-approved drug labeling shows.

MODERATE

Interaction Found

Levothyroxine and losartan together may affect how your body handles blood sugar and blood thinners. Your blood sugar levels might change, and blood thinner medications may need dose adjustments. This happens because levothyroxine changes how your body processes these other drugs.

What to do: Tell your doctor you take both medications. Have your blood sugar checked regularly if diabetic. If you take blood thinners, your doctor will monitor blood clotting tests more closely. Never stop any medication 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.

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

Other interactions with Levothyroxine

MODERATEmetforminMODERATEomeprazoleMODERATEpropranololMODERATEsertralineMODERATEwarfarinMODERATEaspirin

Other interactions with Losartan

MODERATEmeloxicamMODERATEmetforminMODERATEnaproxenMODERATEoxycodoneMODERATEsertralineMODERATEtramadol

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.