Viagra (sildenafil) 100mg - 4 tablets - UK Sourced

Viagra contains the active ingredient Sildenafil, which increases the blood flow to the penis, helping men get erections. While Viagra helps men with getting and maintaining their erection, you need to be aroused for the drug to work effectively, as it does not have an impact on libido. The effectiveness of any erectile dysfunction drug can vary, therefore, if taking Viagra doesn't work the first time it might work more effectively the next. Doctors advise trying all forms of erectile dysfunction drugs 8 times before giving up.