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Erythromycin is used in the treatment of bacterial infections and bacterial skin infections.

How it works

Erythromycin is an antibiotic. It stops the bacterial growth by inhibiting synthesis of essential proteins, which are required by bacteria to carry out vital functions.

Common side effects

Vomiting, Nausea, Pancreatic inflammation, Liver disorder, Abdominal cramp, Gastrointestinal discomfort, Anaphylactic reaction, Diarrhoea, Fainting, Fatigue, Weakness, Fever, Hearing loss, Altered heart rate, Slow heart rate, Itching, Rash, Skin reaction, Skin redness, Sore tongue, Sore mouth, Steven-johnsons syndrome, Stomach pain, Tachycardia, Vaginal itching, Vaginal discharge, Yellow discoloration of skin, Yellow discoloration of eye

Available Medicine

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Expert advice

Do not start or continue the erythromycin tablet/capsule/suspension and consult your doctor:
  • If you are allergic to erythromycin or any other ingredient of the tablet/capsule/suspension.
  • If you are pregnant or breast-feeding.
  • If you have liver or heart problem or suffer from myasthenia gravis.
  • If you are taking medicines for any allergic condition, migraine, raised bad lipids in your blood, drugs for mental illness, epilepsy or heart failure.

Frequently asked questions



Is erythromycin/althrocin/erythrocin/erycin an antibiotic?
Erythromycin belongs to class of medications called macrolide antibiotics


Is it penicillin?
Erythromycin is not penicillin


Does erythromycin have sulfa in it?
Erythromycin does not contain sulfa

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Is erythromycin used for sinus infection, pink eye, strep throat, UTI, bladder infection, tooth infection, ear infection, chest infection or tonsillitis?
Erythromycin can be used to treat sinus infection, pink eye, strep throat, UTI, bladder infection, tooth infection, ear infection, chest infection or tonsillitis. Please consult your doctor before taking the drug


Is erythromycin and azithromycin the same?
Erythromycin and azithromycin belongs to same class of drugs, however they differ in their some of the indications


Is erythromycin safe?
Erythromycin is relatively safe if used at prescribed doses for the prescribed duration as advised by your doctor


Is erythromycin over the counter drug?
Erythromycin is not an over the counter drug. It is a prescription drug


Can I take erythromycin with paracetamol, ibuprofen, methotrexate or vitamins?
Interaction is not observed, when erythromycin is taken with paracetamol, ibuprofen and vitamins however do consult your doctor before use. Drug interaction may occur when methotrexate is taken with erythromycin


Does erythromycin cause gas, weight gain, and drowsiness?
Erythromycin may cause gas, weight gain and drowsiness.

Content on this page was last updated on 14 February, 2017, by Dr. Varun Gupta (MD Pharmacology)