Vigora 100 mg is a medication that contains Sildenafil Citrate, the same active ingredient found in Viagra. Sildenafil is primarily used to treat erectile dysfunction (ED), which is the inability to get or maintain an erection during sexual activity. Sildenafil (the active ingredient in Vigora) works by increasing blood flow to the penis when a man is sexually aroused, helping him achieve and maintain an erection. https://www.flatmeds.com/product/vigora-100-mg/