How does erythromycin work?
Erythromycin blocks bacterial protein production, preventing bacteria from growing and allowing the immune system to fight the infection more effectively.
What is erythromycin used to treat?
Erythromycin is commonly prescribed for:
- Respiratory infections (such as pneumonia and bronchitis)
- Throat and ear infections (such as tonsillitis and otitis media)
- Skin infections (such as acne and cellulitis)
- Sexually transmitted infections (STIs) (such as chlamydia and syphilis)
- Eye infections (such as conjunctivitis in newborns)
Who can take erythromycin?
Erythromycin is suitable for most adults and children, including newborns in certain cases.
Who might not be able to take erythromycin?
Erythromycin may not be suitable if you:
- Have liver or kidney disease
- Have a history of heart rhythm problems (QT prolongation)
- Are taking medications that affect heart rhythm
- Have had an allergic reaction to erythromycin or similar antibiotics (such as clarithromycin or azithromycin)
Can I take erythromycin if I’m pregnant or breastfeeding?
Erythromycin 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 erythromycin?
Erythromycin is highly effective for treating bacterial infections when taken as prescribed.
What should I do if I take too much?
Taking too much erythromycin may cause nausea, vomiting, diarrhoea, or stomach pain. If you think you’ve taken too much, seek medical help immediately.
What dose of erythromycin is usually taken?
- For most infections: 250mg to 500mg four times daily for 5 to 14 days
- For acne: 250mg twice daily
- For chlamydia: 500mg four times daily for 7 days
Your doctor will determine the best dose based on your condition.
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What are the side effects of erythromycin?
Common side effects include:
- Nausea or vomiting
- Diarrhoea
- Stomach pain
- Loss of appetite
Serious side effects, such as severe allergic reactions, jaundice, or irregular heartbeat, require urgent medical attention.
How should I take erythromycin?
Erythromycin is taken as tablets, capsules, liquid, or an injection (in hospitals). Tablets should be swallowed whole with water.
When should erythromycin be taken?
Erythromycin is usually taken before food, as food can reduce how well the body absorbs it.
What are the brand names for erythromycin?
Erythromycin is available as a generic medicine, but some branded versions include:
- Erythrocin
- Erymax
Final thoughts
Erythromycin 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.
