pdp-Erythromycin by Pendopharm is an ophthalmic antibiotic ointment USP containing 5 mg/g of erythromycin in a convenient 3.5 g tube. This prescription eye ointment is labeled for use and is intended for ophthalmic application as directed by a licensed healthcare professional. Each tube is identified by DIN 01912755 for reliable clinic and pharmacy dispensing. Prescription required in Canada, including Quebec.