Can I take Esomeprazole and Losartan together?

Why this happens

Esomeprazole (a stomach acid reducer) and losartan (a blood pressure medication) are processed by different pathways in the body. Esomeprazole does not significantly interfere with how the liver breaks down losartan, nor does it affect how the kidneys remove it from your system. Furthermore, the reduction in stomach acid caused by esomeprazole does not change how well losartan is absorbed into the bloodstream.

What you should do

You can continue to take both medications as prescribed by your doctor. You do not need to change the timing of your doses or take any special precautions. As always, if you notice any new or unusual symptoms, or if your blood pressure readings change significantly, consult your healthcare professional.

Important precautions

Pregnancy

You must not take losartan if you are pregnant or planning to become pregnant. It can cause serious harm or death to an unborn baby, particularly if used in the second and third trimesters.

Severe diarrhoea (C. difficile) - esomeprazole

Seek medical help if you develop severe or persistent watery diarrhoea, as this medicine can increase the risk of a serious bowel infection.

Vitamin B12 deficiency and bone fractures - esomeprazole

Long-term use (over a year) can weaken bones and lead to low magnesium or B12 levels; your doctor should monitor these if you are on long-term treatment.

Severe kidney or liver disease

Your doctor may need to prescribe a lower dose, as your body will take longer to clear esomeprazole.

Magnesium deficiency

Taking esomeprazole for more than three months can cause your blood magnesium levels to drop significantly, leading to fatigue, muscle spasms, or dizziness.

Masking stomach cancer symptoms

Esomeprazole can hide the symptoms of stomach cancer. You must tell your doctor if you have unexplained weight loss, persistent vomiting, or difficulty swallowing before starting this medicine.

Food and drink warnings

Alcohol

While alcohol does not directly interact with esomeprazole, it can increase stomach acid production and irritate the stomach lining, which may worsen the symptoms your medicine is intended to treat. It is best to limit alcohol intake.

It is best to avoid or strictly limit alcohol while taking losartan. Alcohol can increase the blood pressure-lowering effect of losartan, which may make you feel dizzy, lightheaded, or faint, especially when standing up. Combining alcohol with medication also increases the risk of liver damage.

Caffeine

Caffeine (found in coffee, tea, and some fizzy drinks) can trigger or worsen acid reflux and heartburn. This may make esomeprazole less effective at managing your symptoms.

Potassium-rich foods and Salt Substitutes

Avoid using salt substitutes that contain potassium (such as Lo-Salt) and speak to your doctor before significantly increasing your intake of high-potassium foods (like bananas or leafy greens). Losartan can increase potassium levels in your blood; having too much potassium can be dangerous for your heart.

Using other medicines

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.