Oral lichenoid drug eruption induced by ethambutol (Esanbutol®): A case report

Abstract

Ethambutol (Esanbutol^®) has a pronounced tuberculostatic activity. Side effects are an infrequent. Here we report an oral lichenoid drug eruption on the buccal mucosa and the lip in a 75-year-old Japanese man which appeared 2 weeks after commencement of ethambutol. The all lesions resolved dramatically upon withdrawal of the drug. To our knowledge, this is the first report of a lichenoid drug eruption of oral mucosa induced by ethambutol.