Sildenafil

Sildenafil is sold under the brand name Viagra, among others. It is used to treat erectile dysfunction and pulmonary arterial hypertension. It is taken by mouth.

Our medical team will recommend an appropriate starting dose based on your health information. Typically we prescribe 60mg as a starting dose (3 × 20mg pills).

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.

At Go MD USA, you can get authentic sildenafil after an online consultation with a licensed medical professional in your state. Your prescription can be sent to our partner mail-order pharmacy for free delivery.

If appropriate, our team may prescribe generic 20mg sildenafil tablets in quantities of 1, 3, or 5 pills at a time. These doses (20mg, 60mg, and 100mg) parallel the more costly 25mg, 50mg, and 100mg strengths. A typical starting dose for new patients is 60mg (three 20mg tablets).

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

The FDA has approved 25mg, 50mg, and 100mg sildenafil for erectile dysfunction. The 20mg strength is FDA-approved for pulmonary hypertension, not ED — using 20mg for ED is off-label.