Levothyroxine Sodium and Propranolol: Can You Take Them Together?

Here's what FDA-approved drug labeling shows.

MODERATE

Interaction Found

Taking propranolol (a heart/blood pressure medicine) with levothyroxine (thyroid medicine) can change your thyroid hormone levels. This mainly happens at high propranolol doses. Your thyroid function may seem normal, but the balance of hormones can shift.

What to do: Tell your doctor you take both medicines. Your doctor may check your thyroid levels more often and adjust your doses if needed. Don't stop either medicine without talking to your doctor first.

Source: FDA-approved drug labeling via openFDA

About These Medications

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

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

Other interactions with Levothyroxine Sodium

MODERATEomeprazoleMODERATElosartan

Other interactions with Propranolol

MODERATEwarfarinMODERATEhydrochlorothiazideMODERATElevothyroxineMODERATEamlodipineMODERATEibuprofenMODERATEmeloxicam

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.