Clarithromycin

Brand Names of Clarithromycin: Biaxin, Klaricid, Klacid, Clarac, Claripen

What is Clarithromycin?

  • Clarithromycin is an antibiotic that fights bacterial infections, including respiratory tract and skin infections.

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

  • Clarithromycin stops bacteria from growing, helping your body fight the infection.

  • Take the full course to ensure all bacteria are eliminated, preventing the infection from returning or becoming resistant.

The Dose of The Medication

  • Adults usually take 250mg or 500mg twice a day, duration depends on the infection's type and severity.

How and When to Take It

  • Space doses evenly throughout the day, complete the prescribed course even if feeling better.

What to Expect

  • Improvement in a few days for most infections.

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

  • Nausea and vomiting

  • Diarrhoea

  • Bloating and indigestion

  • Headaches

  • Difficulty sleeping

Management of Side Effects

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

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

Common Interactions

  • Inform your clinician about all medications, including over-the-counter and herbal supplements.

Special Warnings

  • Seek medical attention for rashes or unexpected symptoms, as they may indicate allergies. Click here to read more about allergies

Monitoring Your Progress

  • No regular monitoring is required.

  • If you do not feel better after completing your course or if your condition worsens during or after the course, please contact your GP clinician or NHS 111.

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.