Can I take Lansoprazole and Levothyroxine together?

Why this happens

Levothyroxine needs a certain amount of stomach acid to be absorbed properly into your body. Lansoprazole works by reducing stomach acid, which can prevent the levothyroxine from dissolving and entering your bloodstream as it should.

You should ideally take your levothyroxine at least 4 hours apart from your lansoprazole. Most people find it easiest to take levothyroxine first thing in the morning on an empty stomach, and then take the lansoprazole later in the day. Your doctor may need to perform extra blood tests to check your thyroid levels and might adjust your dose if necessary.

Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.