Mupirocin. DermNet NZAuthoritative facts about the skin from the New Zealand Dermatological Society Incorporated. Home For patients For doctors Find a dermatologist About us Store Contact us Glossary A-Z page index Mupirocin ointment 2% is a topical antibiotic that is active against a wide range of bacteria that can be found in skin infections. The trade name in New Zealand is Bactroban .