EOS Men's Health

Sildenafil

Rx

An erectile dysfunction medication that’s FDA approved and clinically proven to treat ED, sildenafil has the same active ingredient as Viagra® at 5% of the cost.

Key Features

Improved Erection Quality: By inhibiting the PDE5 enzyme, sildenafil allows the blood vessels in the penis to relax, which dramatically improves erection hardness and the ability to maintain it during intercourse.

High Success Rate: Clinical trials show that sildenafil successfully improves erectile function in approximately 70% to 80% of men.

Fast Acting: The medication begins working quickly, often producing a penetrative erection as early as 12 to 30 minutes after taking it on an empty stomach.

Reasonable Duration: The effects of a single dose generally last for about 4 hours, giving couples ample flexibility for sexual activity.

Enhanced Quality of Life: Successfully treating ED frequently translates to increased sexual confidence, better relationship satisfaction, and an overall improvement in psychological well-being.

Decreased Refractory Period: Research suggests it may also help reduce the post-ejaculatory refractory time, allowing for a quicker recovery between erections.

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Optimized. Not just treated.

TRT and men's health protocols should do more than move a number on a lab report. When done right, they restore how you feel — and keep you performing at your best.

Cognitive Clarity

Sharper focus, better memory, and improved mental acuity when your hormones are dialed in.

Muscle Strength & Recovery

Build and maintain lean mass with the hormonal support your body needs to perform and recover.

Optimized Testosterone

Restore T levels to their natural peak with physician-calibrated TRT protocols backed by regular lab monitoring.

Physician Supervised

Licensed providers oversee your labs, dosing, and progress at every step — no guesswork, no shortcuts.

Restored Libido

Address low drive at the root cause — not just the symptoms — with targeted hormonal therapy.

Sustained Energy

Eliminate the afternoon crash and reclaim all-day vitality — mental and physical.

Common questions, answered.

Common sildenafil side effects

The most common side effects of generic for Viagra® are headache, lightheadedness, flushing, temporary abnormal vision, stuffy nose, sleep problems, back pain, and upset stomach. Your medical provider can help you mitigate or treat these symptoms if you experience them.

How long does it take for sildenafil to work?

Take sildenafil (generic for Viagra®) about one hour before sexual activity, as it takes about 30 minutes to an hour to begin working.

What is the generic name for Viagra®?

The generic for Viagra® is called sildenafil citrate, which is the active ingredient in Viagra®. This means that the generic form of Viagra® will have the same therapeutic effect, but at a lower cost

What is generic Viagra®?

Generic Viagra® contains sildenafil, the same active ingredient as brand-name Viagra®, which means that it is just as effective for erectile dysfunction as the original ED medication. Generic Viagra® is a PDE5 (phosphodiesterase type 5) inhibitor, which works by blocking the PDE5 enzyme, which in turn temporarily relaxes smooth muscle and improves blood flow to the penis during sexual stimulation. Other similar PDE5 inhibitors are Cialis® (tadalafil), Levitra® (vardenafil) and Stendra® (avanafil).

How to take sildenafil?

Typically sildenafil is taken about an hour before sex. Because it's taken as-needed, you don't have to worry about remembering to take a pill every day—just when the moment is right. It's often suggested that you take it on an empty stomach, but follow your provider's recommendation for best results.

Why Sildenafil?

ED? NDB: Sildenafil is FDA approved to treat ED and can be taken as-needed so you are ready for a good time, anytime!

Same ingredient, 95% cheaper: With the same active ingredient as name brand Viagra®, generic sildenafil clocks in at 5% of the cost.

What are you waiting for?

Take the first step.

A brief quesitionnaire. A licensed clinician. Treatment shipped to your door if you qualify.

HIPAA-compliant careU.S.-licensed cliniciansTransparent pricingFree expedited shippingEasy questionnaire100% OnlineNo insurance required