AdNo Hidden Costs. Lowest Price Guarantee & No Subscription Required. Personalized Options That Fit Your Needs. Viagra Works For 80% of Men.We strive to use primary sources and refrain from using tertiary references. Viagra can be taken with or without food. The products discussed in this site may have different product labeling in different countries. Side effects Side effects of oral ED medicines are often mild. You can take this medicine with or without food 30 minutes before sex, depending on the dose.WebSildenafil (Viagra). This medicine works best when you take it on an empty stomach an hour before sex. The body takes longer to absorb it after a high-fat meal or alcohol. Its effects . WebNov 3, · What Is Viagra? Viagra is a medication for treating erectile dysfunction. It’s available as a brand-name drug and as a generic medication called sildenafil, which is usually available at a much lower cost per tablet.. Viagra is part of a class of drugs called PDE5 medications work by dilating the blood vessels that flow to your . WebJul 12, · Viagra (sildenafil) is a prescription drug that’s used to treat erectile dysfunction (ED). The drug comes as a tablet you’ll take by swallowing. It’s usually taken as needed about 1 hour.The products discussed in this site may have different product labeling in different countries. Different brands may not work the same way. Smith, B. This medicine can cause serious side effects in patients with heart problems. Instead, talk to your healthcare provider.