Monitoring of Fake Anti-impotence Drugs

The safety of fake anti-impotence drugs (fake Viagra : 26 samples, fake Cialis : 25 samples) dis- tributed in Gyeonggi province was studied by monitoring the concentrations of anti-impotence pharmaceutical ingre- dient and their analogues. The concentrations of anti-impotence pharmaceutical ingredient 4 specis and their analogues 17 specis were estimated using by HPLC/PDA, LC-MS/MS. The range of concentration of sildenafil in fake viagra was 40~199 mg/tablet, among them the portion of the concentrations of sildenafil over 150 mg/tablet exceeded 65%. 3 cases in tested samples contained sildenafil and tadalafil. The range of concentration of sildenafil in fake cialis was 102~249 mg/tablet, among them the portion of the concentrations of sildenafil over 150 mg/tablet exceeded 88%. One case in tested samples contained demethylhongdenafil (90 mg/tablet). These results indicate that there were many fake anti-impotence drug contained high level of anti-impotence pharmaceutical ingredients, a sus- tainable monitoring and the blocked distribution of fake anti-impotence drugs recommended.