How It Works:

Erythromycin belongs to class of medications called macrolide antibiotics. Erythromycin inhibits bacterial protein synthesis, thereby stopping the bacterial growth or sometimes killing sensitive bacteria.

Side Effects:

Fainting, sore mouth or tongue, loss of hearing, Abdominal or stomach cramping and discomfort, liver problems, skin rash, yellow eyes or skin, redness, irregular or slow heartbeat, stomach pain, unusual tiredness or weakness, severe skin reaction, Stevens-Johnson syndrome ., diarrhea, vaginal itching and discharge, fever, or itching, anaphylaxis, Increased heart rate, nausea or vomiting, inflammation of pancreas

Used For:

Erythromycin is used to treat ear, nose, throat, chest, skin and soft tissue infections (acne, tooth infection), and sexually transmitted disease (like syphilis).


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 Ask Questions:

Q. Is erythromycin/althrocin/erythrocin/erycin an antibiotic? Is it penicillin? Does erythromycin have sulfa in it?Erythromycin belongs to class of medications called macrolide antibiotics. Erythromycin is not penicillin. Erythromycin does not contain sulfa.
Q. Is erythromycin safe during pregnancy and breast-feeding?Erythromycin crosses the placenta and is excreted in milk in small amounts, erythromycin may be used in pregnant and lactating women, if benefit outweighs the risk. Patients should follow the advice of the doctor regarding its use.
Q. 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.
Q. Is erythromycin and azithromycin the same?Erythromycin and azithromycin belongs to same class of drugs, however they differ in their some of the indications.
Q. Is erythromycin safe?Erythromycin is relatively safe if used at prescribed doses for the prescribed duration as advised by your doctor.
Q. Is erythromycin over the counter drug?Erythromycin is not an over the counter drug. It is a prescription drug.
Q. 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.
Q. Can I take erythromycin with food, milk and alcohol?Erythromycin should be taken ½ hour prior or 2 hours after meals. Erythromycin can be taken with milk. It shows no significant interaction with alcohol, however it is advisable not to drink or limit the use of alcohol while you are taking antibiotics.
Q. Does erythromycin cause gas, weight gain, and drowsiness?Erythromycin may cause gas, weight gain and drowsiness.
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