The four main medicines taken by mouth for erectile dysfunction are: Avanafil Stendra. Be sure to let your doctor and pharmacist know that you are taking these medications before you start taking sildenafil. While the sale remains subject to a consultation with a pharmacist, the other restrictions from the trial have been removed, allowing customers over the age of 18 to purchase an unlimited number of pills. Your doctor will tell you not to take sildenafil if you are taking street drugs containing nitrates. An inherited eye disease that affects the retina. The best time to take sildenafil is about 1 hour before sexual activity, but you can take the medication any time from 4 hours to 30 minutes before sexual activity.Viagra treats erectile dysfunction (ED) in adults. It’s usually taken about 1 hour before sexual activity. Below, you’ll find information about recommended dosages and how to . Viagra is used to treat erectile dysfunction (ED). It decreases ED symptoms by helping you get and keep an erection. Erections happen when a protein called cyclic guanosine . FAQ What is sildenafil? Sildenafil relaxes muscles of the blood vessels and increases blood flow to particular areas of the body. Sildenafil under the name Viagra is used to treat .
