Viagra & sildenafil online

Viagra is a PDE-5 inhibitor approved by the FDA to treat erectile dysfunction. It contains sildenafil citrate and is manufactured by Pfizer. Generic sildenafil became available in 2017 at a more affordable price.

Viagra improves blood flow to the penis by blocking PDE-5, helping men achieve and maintain an erection when sexually aroused. It does not cause spontaneous erections. Take it up to 4 hours before sexual activity.

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

Our team may prescribe generic 20mg sildenafil in quantities of 1, 3, or 5 pills. These map to 20mg, 60mg, and 100mg effective doses. Brand-name Viagra is also available in 25mg, 50mg, and 100mg strengths.

Common side effects include headache, flushing, upset stomach, minor vision changes, nasal congestion, back and muscle pain, nausea, mild dizziness, and rash. These often resolve 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.