How does azithromycin work?
Azithromycin blocks bacterial protein synthesis, stopping bacteria from multiplying and helping the body’s immune system fight the infection.
What is azithromycin used to treat?
Azithromycin is commonly prescribed for:
- Chest infections (such as pneumonia and bronchitis)
- Sinus infections
- Skin infections
- Sexually transmitted infections (such as chlamydia)
- Ear infections
- Some stomach infections caused by Helicobacter pylori
Who can take azithromycin?
Azithromycin is suitable for most adults and children, but your doctor will determine if it’s right for you.
Who might not be able to take azithromycin?
Azithromycin may not be suitable if you:
- Have liver or kidney disease
- Have a history of heart rhythm problems (QT prolongation)
- Are taking certain medications that affect heart rhythm
- Have had an allergic reaction to azithromycin or similar antibiotics (such as erythromycin or clarithromycin)
Can I take azithromycin if I’m pregnant or breastfeeding?
Azithromycin is sometimes prescribed during pregnancy and breastfeeding if your doctor believes the benefits outweigh the risks.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take two doses at once.
How effective is azithromycin?
Azithromycin is highly effective for treating bacterial infections when taken as prescribed.
What should I do if I take too much?
Taking too much azithromycin may cause nausea, vomiting, diarrhoea, or an irregular heartbeat. If you think you’ve taken too much, seek medical advice immediately.
What dose of azithromycin is usually taken?
- For most infections: 500mg once daily for 3 to 5 days
- For chlamydia: 1g as a single dose
- For chest infections: 500mg once daily for 3 days
Your doctor will determine the best dose based on your condition.
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What are the side effects of azithromycin?
Common side effects include:
- Nausea or vomiting
- Diarrhoea
- Stomach pain
- Headache
Serious side effects, such as severe allergic reactions, liver problems, or irregular heartbeat, require urgent medical attention.
How should I take azithromycin?
Azithromycin is taken as tablets, liquid, or an injection (in hospitals). Tablets should be swallowed whole with water.
When should azithromycin be taken?
Azithromycin can be taken with or without food, but taking it with food may reduce stomach upset.
What are the brand names for azithromycin?
Azithromycin is available as a generic medicine, but some branded versions include:
- Zithromax
- Azithrocin
Final thoughts
Azithromycin is an effective antibiotic for treating bacterial infections. To get the best results, take it as prescribed and complete the full course, even if you feel better. If symptoms persist or side effects occur, speak to your doctor or pharmacist.
