A method for promoting smoking cessation, which method comprises administrating an effective, non-toxic amount of ropinirole or a pharmaceutically acceptable salt or solvate thereof to a human in need thereof. Said ropinirole is preferably administered orally or transdermally. Also provided is a medicament for use in smoking cessation that comprises ropinirole. Said medicament may be a tablet for oral use or a transdermal patch containing ropinirole.