Can I take Levothyroxine and Losartan together?

Pourquoi cela se produit

Levothyroxine is a synthetic thyroid hormone, and losartan is an angiotensin II receptor blocker (ARB) used for blood pressure. They work through entirely different pathways in the body and do not interfere with how the other is absorbed, broken down, or excreted.

You can continue taking both medications as prescribed. It is generally recommended to take levothyroxine on an empty stomach, at least 30 to 60 minutes before breakfast, to ensure it is absorbed properly. Losartan can be taken with or without food at any time of day, as long as you are consistent.

Grossesse

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 during the second and third trimesters.

Heart conditions (e.g. angina, heart failure)

If you have a heart condition, your dose must be started very low and increased slowly. Contact your doctor immediately if you experience chest pain or palpitations, as levothyroxine increases the workload on your heart.

Interaction with supplements (Calcium/Iron)

Do not take calcium tablets, iron supplements, or multivitamins at the same time as levothyroxine. You must leave a gap of at least 4 hours between these supplements and your levothyroxine to ensure the medicine works.

Diabète

Levothyroxine can raise blood sugar levels. If you have diabetes, you must monitor your blood glucose more closely when starting or changing your dose, as your diabetes medication may need to be increased.

Alcool

It is best to avoid or strictly limit alcohol while taking losartan. Both alcohol and losartan lower your blood pressure; combining them can make you feel very dizzy, lightheaded, or faint, especially when standing up.

It is best to avoid or strictly limit alcohol while taking levothyroxine. While there is no direct chemical reaction, alcohol can affect thyroid function and may worsen symptoms like tiredness or mood changes.

Timing of dose and food/drink

Take your levothyroxine on an empty stomach, at least 30 to 60 minutes before breakfast or any caffeine. Food, milk, and coffee prevent the medicine from being absorbed properly.

Caféine (Café/Thé)

Caffeine can significantly reduce the amount of levothyroxine your body absorbs. You should wait at least 30 to 60 minutes after taking your tablet before drinking coffee or tea.

Dairy products (Milk, Yoghurt, Cheese)

Avoid consuming dairy products at the same time as your levothyroxine. Calcium found in dairy can interfere with how your body absorbs the medicine, making it less effective. It is best to wait at least 4 hours between taking levothyroxine and consuming dairy.

Soya products

Soya can interfere with the absorption of levothyroxine. If you regularly eat or drink soya products, your doctor may need to monitor your thyroid levels more closely. Avoid consuming soya at the same time as your dose.

Kelp and Seaweed

These foods are naturally high in iodine. Too much iodine can interfere with your thyroid treatment and make your condition worse.

Aliments riches en fibres

A diet very high in fibre can reduce the absorption of levothyroxine. If you significantly change your fibre intake, inform your doctor as your dose may need adjusting.

Potassium-rich foods (e.g., Bananas, Spinach) and Salt Substitutes

Losartan can increase the levels of potassium in your blood. You should avoid using salt substitutes (like Lo-Salt) that contain potassium and speak to your doctor before making large changes to your diet regarding potassium-rich foods.

Prendre plusieurs médicaments ? Notre Vérificateur d'Interactions Médicamenteuses vous aide à vérifier si vos ordonnances, médicaments en vente libre et suppléments peuvent être pris ensemble en toute sécurité. Recherchez simplement vos médicaments pour voir les interactions potentielles et ce qu'il faut faire à leur sujet.

Avertissement

Ces informations sont fournies à des fins éducatives générales uniquement et ne doivent pas être considérées comme un substitut aux conseils médicaux professionnels. Consultez toujours votre médecin généraliste, votre pharmacien ou un autre professionnel de santé qualifié avant de prendre des décisions concernant vos médicaments. Les circonstances individuelles peuvent varier, et seul un professionnel de santé connaissant votre historique médical peut fournir des conseils personnalisés.