What to know about generic Viagra

In this article:

• Generic Viagra
• Is it as effective?
• Other uses for generic Viagra
• Manufacturers of sildenafil
• Generic Viagra cost
• Do you need a Rx for generic Viagra?
• How to avoid counterfeit generic Viagra
• Ways to save
• FAQs
• Expert takeaway

In this article

• Generic Viagra
• Is it as effective?
• Other uses for generic Viagra
• Manufacturers of sildenafil
• Generic Viagra cost
• Do you need a Rx for generic Viagra?
• How to avoid counterfeit generic Viagra
• Ways to save
• FAQs
• Expert takeaway

Viagra is a well-known prescription medication used to treat erectile dysfunction (ED). Approved by the FDA in 1998, it was the first drug of its kind—and quickly became one of the most popular ED treatments. Often called the “little blue pill,” Viagra contains the active ingredient sildenafil, which increases blood flow to the penis to help achieve and maintain an erection.

But Viagra can be expensive. Fortunately, a Viagra generic option is now available. Let’s break down how sildenafil compares to brand-name Viagra and how you can save money while getting the same treatment.

Is there a generic for Viagra? Availability and FDA approval

Yes, a generic version of Viagra is available in the market. The generic medication, sildenafil, became accessible in the United States in 2017. Sildenafil is considered an effective alternative to Viagra for treating ED. Like Viagra, the generic version belongs to a group of medicines known as PDE5 inhibitors, and several manufacturers now sell these generic equivalents online and in person.

The primary function of sildenafil and other PDE5 inhibitors, such as Cialis (tadalafil) and vardenafil, is to boost the effects of nitric oxide in the body. Nitric oxide is a natural chemical that helps widen the blood vessels in the penis, thereby increasing blood flow and promoting an erection during sexual activity. Generic medications like sildenafil generally offer a more accessible option for those in need of medical treatment.

Is generic sildenafil as effective as Viagra? Clinical data

Sildenafil and Viagra are both effective treatments. They are virtually the same medications, with slight differences that should not affect their effectiveness or safety. The following are some of the similarities and differences between the two.

Active ingredient

Both Viagra and sildenafil contain the same active ingredient: sildenafil citrate. This active ingredient helps treat ED by increasing blood flow to the penis during sexual stimulation. Since they share the same active ingredient, their effectiveness in treating ED is similar.

Treatment success

Along with taking either the brand or generic version, lifestyle changes, such as regular exercise and a healthy diet, may also be recommended to improve ED symptoms. Discussing lifestyle changes and the appropriate medication dosage with a healthcare professional may help maximize treatment success.

Clinical trials 

Viagra has undergone clinical trials that have shown its effectiveness in treating ED. In studies, 46.5% to 87% of men taking sildenafil reported improved erections, while only 11.3% to 41.3% of men taking a placebo reported improvement. As both Viagra and sildenafil contain the same active ingredients, these results can be applied to both medications.

The main difference between the brand and the generic 

The major difference between Viagra and sildenafil is the price and appearance. Viagra is a well-known brand name produced by Pfizer, while sildenafil is produced by various manufacturers. As a result, sildenafil is generally more affordable than Viagra. In addition, Viagra is typically sold as a blue, diamond-shaped pill, while sildenafil may come in different colors and shapes.

Viagra vs. sildenafil
Feature	Viagra	Sildenafil
Dosage forms	25 mg, 50 mg, and 100 mg tablets	20 mg, 25 mg, 50 mg, and 100 mg tablets; 10 mg/mL liquid suspension
Effectiveness	Indicated for erectile dysfunction	Indicated for erectile dysfunction and pulmonary hypertension
Onset of action	60 minutes	60 minutes
Availability	Yes, and less likely to be covered by insurance	Yes, and more likely to be covered by insurance
Cost	$2,521 for 30, 100 mg tablets with a SingleCare coupon at Walgreens	$16 for 30, 100 mg tablets with a SingleCare coupon at Kroger

Prescription drug prices often change. These are the most accurate medication prices available at the time of publication in ZIP code 23666 as of December 14, 2025. The listed price, without insurance, refers to the price of brand-name drugs (unless otherwise specified).

Other uses for generic Viagra

Brand-name Viagra is primarily used for treating ED in men. However, there are several other medical conditions for which sildenafil may be used as an effective treatment. These include pulmonary arterial hypertension and Raynaud’s disease.

Pulmonary arterial hypertension

Sildenafil is also used under the brand name Revatio to treat pulmonary arterial hypertension (PAH). Individuals with PAH have high blood pressure within the arteries of the lungs, making it difficult for the heart to pump blood effectively. The drug helps to relax and widen the blood vessels, improving blood flow and reducing strain on the heart. Sildenafil can help relieve symptoms of PAH, like shortness of breath and fatigue.

Raynaud’s disease

Raynaud’s disease affects blood flow to the extremities, causing them to feel cold and numb in response to cold temperatures or emotional stress. Sildenafil has shown promise as a treatment for Raynaud’s disease by counteracting the narrowing of blood vessels that can occur during episodes. Studies have shown that sildenafil may reduce the number of episodes of Raynaud’s phenomenon a person with limited cutaneous systemic sclerosis may experience each week. At this time, use of sildenafil for Raynaud’s disease is still off-label.

Manufacturers of generic Viagra (sildenafil)

Pfizer initially developed Viagra. However, as the patent on Viagra expired, other pharmaceutical companies gained the opportunity to produce generic versions of the drug. Teva Pharmaceuticals entered the market with the first sildenafil generic in December 2017. Since then, other manufacturers in the pharmaceutical industry, such as Mylan and Amneal Pharmaceuticals, have produced generic Viagra.

With increased competition, prices tend to decrease, making the medication more affordable for consumers. Although the availability of generics has disrupted the market formerly dominated by Pfizer, it ultimately benefits patients by providing them with more options and potentially lower costs.

Generic Viagra cost: Price breakdown and what affects it

Generic Viagra is typically less expensive than its brand-name counterpart. One of the main reasons for the lower price is that generic medications do not carry the same research and development costs as brand-name drugs. As a result, consumers can usually purchase generic Viagra at a significantly reduced price compared to the original product.

Prices for generic Viagra can vary depending on the strength of the medication and the pharmacy location. For instance, at some pharmacies, with a SingleCare coupon, the cost of 30 tablets of 20 mg sildenafil can range from around $8 to $35. In comparison, a similar quantity of 100mg sildenafil might be found for as low as $16 to as high as $33 or more at other retailers. 

Brand vs. generic Viagra prices
	Brand-name Viagra	Viagra generic (sildenafil)
Average cost without insurance	$1,063 for 10, 100 mg tablets of Viagra	$1,374 for 30, 100 mg tablets of sildenafil
SingleCare’s lowest price	$850 for 10, 100 mg tablets of Viagra at Walgreens	$16 for 30, 100 mg tablets of sildenafil at Kroger
Free coupons	Viagra coupons	Sildenafil coupons

Do you need a prescription for generic Viagra?

Generic Viagra is a prescription drug. In the United States, it is necessary to obtain a prescription from a doctor or other licensed healthcare provider before being able to purchase and use generic Viagra.

Although prescription medications ensure safety and efficacy, regulations on generic Viagra vary in other countries. Some nations, such as the UK, may allow access to generic Viagra as a nonprescription drug, but it’s important to be cautious when considering this option. Taking Viagra without a prescription could potentially lead to adverse health effects.

One way to obtain generic Viagra without visiting a doctor in person is through telehealth services and online pharmacies. Telehealth platforms allow patients to connect with healthcare providers remotely, getting medical advice and discussing medical history, sexual activity, and any pre-existing health conditions. Lists of prescription and over-the-counter medications can be reviewed, looking for potential drug interactions with sildenafil. A doctor can then determine if generic Viagra is a suitable treatment and provide a prescription.

How to avoid counterfeit generic Viagra

The prevalence of counterfeit Viagra, especially online, is a growing concern. Fake Viagra pills may pose a risk, as some ingredients in these products may lead to allergic reactions or even a heart attack in some people. It’s important to be cautious when purchasing medications, including generic Viagra, to avoid potential health risks.

To ensure the Viagra products you buy are safe and effective, always use reputable sources for purchasing. One way to achieve this is by purchasing medications online from licensed pharmacies. Several reputable online pharmacies allow patients with a valid prescription to purchase generic Viagra.

Avoid buying from websites that offer extremely low prices or claim to provide Viagra without a prescription, as these may be signs of counterfeit products. When ordering online, choose pharmacies that require a valid prescription, have a secure payment process, and offer customer support. Additionally, importing prescription drugs via online pharmacies or from other countries may be subject to specific guidelines, such as U.S. Customs regulations. Therefore, you may want to research any potential restrictions before purchasing medications internationally.

Ways to save on generic Viagra (sildenafil)

Although generic Viagra is generally cheaper than the brand-name version, it may still be expensive for some people. However, it’s possible to save on generic Viagra in various ways, including comparing prices, consulting with healthcare professionals, and using prescription discount cards. 

1. Compare prices

One way to save on generic Viagra is to compare prices across different pharmacies. Prices can vary depending on the location and the specific pharmacy, so shopping around can help find the most affordable option. Online pharmacies may also offer lower prices for generic medications than traditional brick-and-mortar pharmacies. However, it’s important to make sure the online pharmacy is reputable and licensed to avoid counterfeit medications or scams.

2. Consult healthcare professionals

Other PDE-5 inhibitors are available that work similarly to Viagra and may be cheaper. Healthcare providers and professionals may be able to provide guidance on finding lower-priced alternatives and determining the best choice. Healthcare professionals may also be able to provide information on any available financial assistance programs.

3. Use prescription discount cards

Using prescription discount cards, such as the SingleCare discount card, may lead to further savings on generic Viagra. These cards work by offering discounts on medications through participating pharmacies. Some key points to consider when using prescription discount cards include:

• Making sure the card is accepted at your chosen pharmacy
• Comparing the discounted price with other pharmacies and insurance prices

By exploring these options and taking advantage of discount cards, you could save on generic Viagra while still receiving the treatment you need.

FAQs

Is generic Viagra safe?

Sildenafil is generally regarded as a safe drug for most people, but it needs to be avoided in the setting of certain heart or eye conditions, as well as with some other medications.

Does sildenafil really work?

Sildenafil works for most men with erectile dysfunction.

How long does sildenafil last?

About 4 hours for treating ED.

Can I take sildenafil every day?

Sildenafil is taken every day for pulmonary hypertension. It is only taken on an as-needed basis for erectile dysfunction and no more often than once per day for this indication.

Can women take sildenafil?

Sildenafil is used to treat pulmonary hypertension in both women and men.

Expert takeaway

“Having a generic form of Viagra available has made ED treatment much more affordable for patients, which is particularly important because insurance coverage for ED drugs is lacking,” explains Chad Shaffer, MD, member of the SingleCare Medical Board. “As a result, more patients are seeking and receiving treatment in recent years.”