Sildenafil is the chemical name for the active ingredient in Viagra. Sildenafil is in the group of medicines that doctors call PDE-5 inhibitors.

At iLiveActive you can buy genuine sildenafil online by completing an online doctor visit to with a doctor licensed in your state. We can send that prescription to our partner mail order pharmacy. To get started you can use our erectile dysfunction service.

Generic 20mg pills are the low cost option. If a iLiveActive doctor thinks it is appropriate to give you a prescription, they will recommend you take 1, 3 or 5 pills at a time, depending upon your personal situation. 1 pill at a time = 20mg dose. 3 pills at a time = 60mg dose. 5 pills at a time = 100mg dose. These are the closest equivalent doses to the more expensive sildenafil 25mg, sildenafil 50mg and sildenafil 100mg. The typical starting dose for someone who has never taken these medicines before is 60mg, or 3 of the 20mg pills at a time.

Your iLiveActive doctor will recommend the appropriate starting dose based on all the information you provide. Typically our doctors prescribe the 60mg as a starting dose, which means taking 3 of the 20mg pills at a time.

Never take more than one dose in 24 hours. Do not eat grapefruit or drink grapefruit juice on the same day you take sildenafil because it increases the chance of side effects.

Common side effects include headache, flushing, upset stomach, minor changes in vision, nasal congestion, back and muscle pain, nausea, mild dizziness, and rash. These side effects will often go away on their own, but you should seek treatment if they persist.