Erythromycin is an antibiotic prescribed to treat a variety of infections. The most frequent side effects of erythromycin are nausea, vomiting, loss of appetite, diarrhea, and abdominal pain. Erythromycin is used to prevent and treat infections in many different parts of the body, including respiratory tract infections, skin infections, diphtheria, intestinal amebiasis, acute pelvic inflammatory disease, Legionnaire's disease, pertussis, and syphilis. Erythromycin is an antibiotic that is commonly used for the following infections caused by certain bacteria. Erythromycin is also commonly used to prevent certain bacterial infections, such as. Detailed Erythromycin dosage information for adults and children. Includes dosages for Bacterial Infection, Bronchitis, Skin or Soft Tissue Infection and more; plus renal, liver and dialysis adjustments. Erythromycin belongs to the class of medicines known as macrolide antibiotics. It works by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections. This medicine is to be given only by or under the direct supervision of a doctor. Erythromycin is used to treat certain infection caused by bacteria including infections of the ears, lungs, sinuses, skin, throat, and reproductive organs. Erythromycin is in a class of medications called macrolide antibiotics. It works by stopping the growth of bacteria. Erythromycin (Ery-Tab, E.E.S., EryPed) is an antibiotic that treats bacterial infections. It can treat respiratory infections, sexually transmitted infections, skin infections, and more. Erythromycin is a macrolide antibiotic used to treat bacterial infections. Includes erythromycin side effects, interactions and indications. Erythromycin (sometimes abbreviated ETM in reports) [3] is an antibiotic used for the treatment of a number of bacterial infections. [1] This includes respiratory tract infections, skin infections, chlamydia infections, pelvic inflammatory disease, and syphilis. [1] Find out how erythromycin treats chest and skin infections, ear infections and sexually transmitted infections (STIs), and how to take it. NHS medicines information on erythromycin – what it's used for, side effects, dosage and who can take it.