You can take this medicine with or without food 30 minutes before sex, depending on the dose. Contact your medical provider if you experience any side effects during treatment. Severe liver disease. Tadalafil Cialis. Food and Drug Administration warns that there are many unsafe online pharmacies that claim to sell prescription drugs at deeply discounted prices, often without requiring a prescription. Kidney disease that needs to be treated with dialysis. Stendra avanafil : This is an as-needed medication taken 30 minutes before sex and can last up to six hours.Sildenafil (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. While some of what’s sold as generic Viagra online is fake, several reputable companies sell sildenafil online. Each of the companies below has been vetted by our team for . The U.S. Food and Drug Administration warns that there are many unsafe online pharmacies that claim to sell prescription drugs at deeply discounted prices, often .
