Tell your doctor if you are taking any of the medicines listed below, as special care should then be taken: − Antibiotics (e.g. rifabutin, rifampicin, clarithromycin); − Anticancer medicines (e.g. vincristine, vinblastine); − Antidepressants (e.g. trazodone, bupropion); − Anti-epilepsy medicines (e.g. carbamazepine, phenytoin, phenobarbital); − Antifungals (e.g. ketoconazole, itraconazole, voriconazole); − Erectile dysfunction medicines (e.g. sildenafil and tadalafil);