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Sildenafil Citrate Product

FDA-Approved Oral Tablet


Sildenafil Citrate

Generic Viagra®

Sildenafil Citrate* is an oral medication that’s FDA-approved for treating erectile dysfunction (ED). Take as needed to boost your ability to achieve and maintain an erection.†

starting from $3.20/dose

This treatment requires a free online consultation with a Keeps medical provider.

how it works

  • Sildenafil Citrate* blocks the enzyme PDE5, improving blood flow when (and where) it matters most
  • More blood flow to the penis makes it easier to get and stay hard when aroused

About this treatment


SILDENAFIL (suhl • DEH • nuh • fl) CITRATE* is FDA-approved to treat erectile dysfunction. Take it 30 minutes to four hours prior to sexual activity. It’s most effective when taken on an empty stomach and with no alcohol in the mix. Be sure to follow your provider’s instructions for best results. Individual results may vary.

Elevate intimacy with expert-recommended ED relief
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  • Enjoy stronger erections for better intimacy †
  • Take when the moment’s right, not on a schedule
  • Adaptable dosage and quantity options to meet your needs ‡
  • Tailored treatment guidance from ED specialists

† Individual results may vary.

‡ Consultation required. Medication prescribed if appropriate.

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Why Keeps?

Since 2018, we've been your trusted source for hair loss expertise. Now, we're thrilled to expand our dedication to your health and wellbeing with sexual health care. With our expert-recommended, clinically-trusted treatment plans for ED, you can count on the same convenient care and reliable results you’ve come to know from us.

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    Affordable and clinically-proven generic treatment options

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    Online consultation to confirm your treatment plan is a good fit

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    Regular follow-ups to ensure your treatment is working

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    24/7 messaging access with a licensed medical provider

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    Shipped and delivered directly to your door

Product packaging for illustration purposes only.

How Keeps works


1. Request a treatment plan

Share your preferences and medical history for a personalized, expert treatment recommendation.


2. Get it delivered

You have the flexibility to choose how frequently your treatment is delivered to your door.


3. Keep it up

You’ll receive continuous support and guidance from your provider to help you attain your desired results.

More about Sildenafil Citrate

What causes erectile dysfunction?


Erectile dysfunction (ED) occurs when a man has trouble getting or maintaining an erection firm enough for sexual activity. This typically results from insufficient blood flow to the penis. However, there are many possible factors that can cause ED, including: physical factors such as cardiovascular conditions; diabetes and high blood pressure; psychological factors such as stress, anxiety or depression; lifestyle choices such as smoking, excessive alcohol consumption and drug use; hormonal imbalances; neurological conditions; age; and medications. It is important that you share all of these details with your medical provider before requesting treatment.

What ED treatments are there?


We prescribe Sildenafil Citrate (generic Viagra®)* and Tadalafil (generic Cialis®)**, which are FDA-approved and clinically proven to treat erectile dysfunction.

What is Sildenafil Citrate?


Sildenafil Citrate* is a generic form of Viagra®, an oral medication FDA-approved for treating Erectile Dysfunction.

How does Sildenafil Citrate (generic Viagra®) work?


Sildenafil Citrate (generic Viagra®)* works by blocking PDE5 (phosphodiesterase type 5), an enzyme in the body that breaks down the chemicals responsible for blood flow (and therefore erections). The result is increased blood flow to the penis to help a man get and keep an erection.

How to take Sildenafil Citrate (generic Viagra®)?


Take as needed for erectile dysfunction, 30 minutes to 4 hours before sexual activity. This medication works best on an empty stomach and without the consumption of alcohol close to its use. Follow your provider’s recommendation for best results.

How long does it take for Sildenafil Citrate (generic Viagra®) to work?


Sildenafil Citrate (generic Viagra®)* typically takes between 30 minutes to an hour to begin working and lasts up to 12-24 hours in the body.

What are the most common side effects of Sildenafil Citrate (generic Viagra®)?


The most common side effects include headache, flushing, indigestion, abnormal vision, nasal congestion, back pain, muscle pain, nausea, dizziness and rash. You can view detailed safety information for Sildenafil Citrate (generic Viagra®)* here. Reach out to your medical provider regarding any side effects that you experience.

Are there potential Sildenafil Citrate (generic Viagra®) interactions with other medications?


Sildenafil Citrate (generic Viagra®)* may interact with other medications such as nitrates (often prescribed for chest pain), guanylate cyclase stimulators (often prescribed for cardiovascular conditions and include Adempas (riociguat)), alpha-blockers (commonly used for prostate problems or high blood pressure), HIV protease inhibitors, certain oral antifungal drugs such as ketoconazole, specific antibiotics, or other drugs for high blood pressure or erectile dysfunction. Sildenafil* is also found in REVATIO®, used for treating pulmonary arterial hypertension (PAH). Sildenafil Citrate (generic Viagra®)* should not be taken with REVATIO® or other PAH treatments containing sildenafil* or PDE5 inhibitors like Adcirca (tadalafil). Always consult your medical provider for safe medication use. Please tell your medical provider about any prescription or over-the-counter medications you are taking as Sildenafil Citrate (generic Viagra®)* may interact with other drugs.

* Sildenafil Citrate tablets (25mg, 50mg, & 100mg), Rx only, treats erectile dysfunction. Sildenafil Citrate may cause side effects, including headache, flushing, and indigestion. If you would like to learn more about sildenafil citrate, please see the full prescription information here. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit MedWatch: or call 1-800-FDA-1088.

** Tadalafil (2.5mg, 5mg, 10mg, & 20mg), Rx only, treats erectile dysfunction. Tadalafil may cause side effects, including headache, indigestion, back pain, and muscle pain. If you would like to learn more about tadalafil, please see the full prescription information here. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit MedWatch: or call 1-800-FDA-1088.

The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. You should not rely upon the content provided here for specific medical advice. If you have any questions or concerns, please talk to your doctor.

All product names, manufacturer or distributor names, logos, trademarks, and registered marks ("Product Marks") are the property of their owners and are for identification purposes only. Product Marks do not imply any affiliation, endorsement, connection, or sponsorship by their owner(s).


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