Medically reviewed by Jessica Swirble, PharmD
Last updated on 3/16/2024

Drug Information | Side Effects | Use & Dosage | Request a Prescription

• Brand Name: ERY-C, Ery-Tab, Erythrocin, PCE
  Generic Name: Erythromycin
  
• Uses: Treatment for bacterial infections
  
• Drug Class: Macrolide antibiotic
  
• Availability: Prescription and over-the-counter
  
• Generic Status: Yes
  
• Controlled Substance: No
  
  

Erythromycin is an antibiotic medication used to treat bacterial infections in various areas of the body.

Erythromycin is prescribed for the treatment of various bacterial infections, including:

• Respiratory tract infections such as pneumonia and bronchitis
  
• Skin infections like cellulitis and impetigo
  
• Ear infections
  
• Eye infections
  
• Sexually transmitted infections like chlamydia, gonorrhea, and syphilis
  
• Legionnaires' disease
  
• Pertussis (whooping cough)
  
• Prevention of recurrent rheumatic fever
  
• Dental infections
  
  

Erythromycin works by inhibiting the growth of bacteria. It does this by interfering with their protein synthesis, ultimately leading to the death of the bacteria.

Erythromycin is available as an oral tablet, capsule, delayed-release capsule, and liquid suspension. It may also be available in ointment and topical gel forms for certain skin conditions. Ophthalmic erythromycin is used for the treatment of bacterial eye infections. The form of erythromycin prescribed will depend on the infection requiring treatment.

The time it takes to notice an improvement in symptoms can vary depending on the type of infection being treated. It's essential to complete the full course of treatment as prescribed by your healthcare provider, even if you start feeling better before the medication is finished.

Erythromycin may also be prescribed off-label for conditions such as acne. It may also be prescribed to prevent heart infections in patients undergoing dental surgery or other procedures. Discuss any alternative uses with your healthcare provider.

Erythromycin is available as an oral tablet, capsule, delayed-release capsule, and liquid suspension. It may also be available in ointment and topical gel forms. Ophthalmic erythromycin is available for bacterial eye infections.

Erythromycin is available under brand names like ERY-C, Ery-Tab, Erythrocin, and PCE. Generic versions of erythromycin are also available.

Erythromycin is available both over-the-counter and via prescription. For systemic infections, you must have a written prescription from a licensed healthcare provider to obtain this medication.