Generic Name: tetracycline (te tra SYE kleen) Brand Names: Achromycin, Topicycline Spanish Name: Acromicina What is Achromycin (tetracycline topical)? Tetracycline is an antibiotic. Tetracycline topical prevents bacteria from growing on the skin. Tetracycline is used topically to treat bacterial infections such as acne. Tetracycline topical may also be used for purposes other than those listed in this medication guide. Please consult your physician before taking this medication.