There’s no good evidence that sildenafil works for women with sexual problems. Can I drive or ride a bike? There are lots of treatments that claim to be a “herbal Viagra”. Unlicensed use Unlicensed use For sildenafil Sildenafil is used for the treatment of digital ulcer, E but is not licensed for this indication. You’ll soon start receiving the latest Mayo Clinic health information you requested in your inbox. Sildenafil does not make you sleepy and so it’s usually safe to drive or ride a bike while taking this medicine. It affects the way the medicine works.Generic Names: Sildenafil Citrate Brand Names: Revatio Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Learn more about Viagra oral. 1 This. Shop the best Male Enhancement Pills at CVS! Browse a huge selection of sex pills for men online and enjoy discrete shipping to your home.  · Is Viagra prescribed in dosages of mg, mg, or mg? The highest recommended Viagra dose for treating erectile dysfunction (ED) is mg per day, according to the drug’s manufacturer.