Porophyllum obscurum (Spreng) DC (Asteraceae) hexanic extract (PoHex) from aerial parts has demonstrated antifungal activity under UVA irradiation against Candida spp. isolates from patients with oropharyngeal candidiasis and four thiophenes were isolated as responsible of the activity. In the
We report Porophyllum obscurum as a source of new photosensitizers with potential use in Photodynamic Therapy as an alternative for oropharyngeal candidiasis treatment. The antifungal photosensitive activity of different extracts from P. obscurum was evaluated by using microdilution and