Losartan + Propranolol

SAFE — No Known Interaction

🟢 SAFE — Losartan and Propranolol can be taken together safely.

Evidence level: MODERATE

What this interaction means

Losartan and Propranolol are safe to take together. No adverse interactions have been reported in medical literature.

How it works (mechanism)

No clinically significant interaction between Losartan and Propranolol has been identified in FDA drug labeling or major drug interaction databases.

Practical advice

No documented interaction between Losartan and Propranolol. Your pharmacist checks for interactions every time you fill a prescription. If you experience any new symptoms after starting Propranolol, let your doctor know — they can help determine if it's related to your medication combination.

Timing

Take Propranolol at the same time daily — never stop abruptly (risk of rebound hypertension). Losartan follows its prescribed schedule. Beta-blockers can be taken with or without food.

Risk factors

Higher risk for: those with asthma or COPD, bradycardia, diabetes (may mask hypoglycemia symptoms), elderly, concurrent calcium channel blocker use, or peripheral vascular disease.

Symptoms to watch for

Monitor blood pressure and heart rate when combining Losartan with Propranolol. Watch for: dizziness, lightheadedness (especially when standing up), fatigue, cold extremities, slow heartbeat, or swelling in ankles/feet. Check your blood pressure at home if possible. When to seek emergency help: Fainting, chest pain, heart rate below 50 bpm, severe dizziness, difficulty breathing, or allergic reactions (swelling of face, lips, or tongue).

What to tell your doctor

No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. An up-to-date list helps them make the best treatment decisions.

Safer alternatives

These medications are safe to take together at standard doses. Continue taking as prescribed and keep your pharmacist informed of your complete medication list.

Frequently asked questions

Can I take Losartan and Propranolol together?

Losartan and Propranolol are safe to take together. No adverse interactions have been reported in medical literature.

When should I take Losartan vs Propranolol?

Take Propranolol at the same time daily — never stop abruptly (risk of rebound hypertension). Losartan follows its prescribed schedule. Beta-blockers can be taken with or without food.

What symptoms should I watch for if I combine Losartan and Propranolol?

Monitor blood pressure and heart rate when combining Losartan with Propranolol. Watch for: dizziness, lightheadedness (especially when standing up), fatigue, cold extremities, slow heartbeat, or swelling in ankles/feet. Check your blood pressure at home if possible. When to seek emergency help: Fainting, chest pain, heart rate below 50 bpm, severe dizziness, difficulty breathing, or allergic reactions (swelling of face, lips, or tongue).

Are there safer alternatives to combining Losartan with Propranolol?

These medications are safe to take together at standard doses. Continue taking as prescribed and keep your pharmacist informed of your complete medication list.

What should I tell my doctor about taking Losartan and Propranolol?

No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. An up-to-date list helps them make the best treatment decisions.

Explore more interactions

Or browse the full interaction database (121,000+ pairs).