Losartan

What is Losartan?

  • Losartan is a medication commonly prescribed for high blood pressure, heart failure, post-heart attacks, and kidney problems.

    It belongs to the class of drugs known as angiotensin II receptor blockers (ARBs).

How Does it Work and Why is it Important to Take?

  • Losartan helps lower blood pressure by relaxing blood vessels.

  • It also supports heart function and is important for managing heart failure and recovering after a heart attack.

  • Additionally, it helps preserve kidney health, which is vital for overall heart and kidney wellness

The Dose of The Medication

  • The usual starting dose of Losartan is between 12.5mg and 50mg a day, depending on the condition being treated.

  • The maximum dose of Losartan can be between 100mg to 150mg a day depending on what you are taking it for

How and When to Take It

  • It's best to take Losartan at night initially to minimise dizziness.

  • After the first dose, take it at the same time each day.

What to Expect

  • You may not notice any immediate changes, but it's important to continue taking Losartan as prescribed.

    Losartan can start working within an hour, but its full effects may take several weeks to manifest.

What to Do if You Miss a Dose

  • If you forget a dose, take it when you remember.

  • If it's close to your next scheduled dose, skip the missed one—never double up.

Possible Side Effects

  • Dizziness

  • Headaches

  • Nausea and vomiting

  • Diarrhoea

  • Muscle or joint pain

Management of Side Effects

  • Click here for common side effects and how to manage them.

  • If you experience unexplained muscle or joint pain, consult your GP clinician.

  • Some side effects improve as your body adjusts.

  • If severe, persistent or bothersome side effects occur, consult your GP, local pharmacy, or NHS 111.

Common Interactions

  • Inform your healthcare provider about all medications you're taking, including over-the-counter and herbal supplements.

  • Avoid over-the-counter ibuprofen or aspirin unless advised by a clinician.

Special Warnings

  • Drinking alcohol can enhance the effects of Losartan; consider limiting or avoiding alcohol until you understand how your body responds.

  • Avoid consuming grapefruit juice, as it can affect Losartan levels in your blood.

  • Dehydration can affect kidney function; if you experience vomiting or diarrhea, follow 'Sick Day Rules' here.

Monitoring Your Progress

  • Regular check-ups with your GP clinician are crucial to monitor blood pressure, kidney function, and overall health.

Where to Find More Information and Who to Contact

  • Refer to the patient information leaflet and the NHS website for more details.

  • If you have questions or experience unusual symptoms, contact your GP clinician, local pharmacy, or NHS 111.