Sildenafil (generic Viagra®),
prescribed online and delivered.

Looking for a sildenafil citrate coupon? Sildenafil citrate is the low-cost generic form of Viagra and Revatio, and because it is already available as a generic, the cash price is often a fraction of the brand. But prices for the same tablet can vary widely from one pharmacy to the next, so it pays to compare. Enter your ZIP above to see today's price for sildenafil citrate across more than 60,000 U.S. pharmacies and use the free Rx.com discount card at checkout, no insurance required.

What is sildenafil citrate and how does it work?

Sildenafil citrate is a phosphodiesterase type-5 (PDE5) inhibitor. It works by enhancing the effect of nitric oxide, which relaxes smooth muscle and widens blood vessels to improve blood flow. It is the active ingredient in several FDA-approved brand products, sold under the names Viagra, Revatio, and Liqrev.

Its FDA-approved uses depend on the brand. As Viagra, sildenafil treats erectile dysfunction (ED) in adult men. As Revatio and Liqrev, sildenafil treats pulmonary arterial hypertension (PAH, WHO Group I) in adults, and Revatio is also approved for children 1 year and older, to improve exercise ability and delay clinical worsening. The generic, sildenafil citrate, contains the same active ingredient as these brand-name drugs.

Sildenafil citrate cost and savings without insurance

Because sildenafil citrate is available as a generic, it is typically far less expensive than brand-name Viagra or Revatio. Even so, the cash price for the exact same tablet and strength can differ significantly between pharmacies, which is why comparing before you fill matters. Enter your ZIP above to see today's price at pharmacies near you and print or text yourself the free Rx.com discount card, no insurance needed.

If you are prescribed the brand and prefer the manufacturer's own offer, Viagra has a manufacturer savings card at viagra.com/en/savings-card-download. Eligibility and terms vary, so review the details on that page. For most people, the generic sildenafil citrate is the more affordable route.

Sildenafil vs. Viagra and other alternatives

Sildenafil citrate and Viagra contain the same active ingredient; Viagra is simply the original brand name, while sildenafil citrate is the generic. Revatio is another brand of sildenafil, dosed for pulmonary arterial hypertension rather than ED. Other PDE5 inhibitors used for erectile dysfunction include tadalafil (brand Cialis), vardenafil, and avanafil.

These drugs differ mainly in how quickly they take effect and how long they last. Which one fits you best is a conversation to have with your prescriber. Whichever you are prescribed, compare its price above before you fill.

Safety and important warnings

Sildenafil citrate is not a controlled substance and carries no boxed warning, but there are important safety considerations. It must never be taken with nitrate medications (such as nitroglycerin or isosorbide) or with riociguat, because the combination can cause a severe, potentially fatal drop in blood pressure. Do not combine it with other PDE5 inhibitors such as tadalafil. Use caution with alpha-blockers and other blood pressure medicines. An erection lasting more than 4 hours (priapism) is a medical emergency.

Common side effects include headache, flushing, nasal congestion, upset stomach, and temporary changes in color or brightness of vision. Rare but serious events include sudden vision loss (NAION), sudden hearing loss, and cardiovascular problems such as heart attack or stroke, particularly in people with existing heart disease. This is general information, not medical advice, always talk with your doctor or pharmacist about your health and the medicines you take.