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Viagra Alternatives Over the Counter: What the Evidence Shows

Searches for over-the-counter Viagra lead to supplements, not approved drugs. Here is what the trials and the FDA say about them.

Men's Health Weekly staff ·

The quick answer

In the United States there is no over-the-counter version of Viagra or any other approved ED pill. Sildenafil is a prescription medicine, and its label says so.1 What stores and websites sell as "over-the-counter Viagra alternatives" are dietary supplements. Reviews of randomized trials find that a few ingredients, mainly ginseng and L-arginine, may give a small benefit, while the FDA warns that many "male enhancement" products contain hidden prescription drugs.2,3,4

Is there an over-the-counter Viagra?

Not in the US. Viagra, Cialis and generic versions of vardenafil are sold by prescription, and the Viagra label describes it as a prescription medicine for ED.1 A clinician has to check the things a shelf cannot: nitrate use, which makes sildenafil contraindicated in any form, heart status, and other medicines.1

That leaves two real categories of "alternative": supplements you can buy without a prescription, and non-drug steps that have their own evidence. Each is covered below. A third category, the FDA-approved prescription alternatives to sildenafil, is a clinician conversation rather than a shopping decision; see questions to ask before getting ED medication online.

Which supplements have been tested in trials?

Supplement trials are mostly small and short, so the findings below are best read as "maybe a little" rather than as proof. Here is what the main reviews found.

IngredientBest evidenceWhat it found
GinsengCochrane review, 2021: nine placebo-controlled trials, 587 men with mild to moderate ED, follow-up up to 12 weeks2On the IIEF-5 questionnaire (scale 1 to 25), ginseng scored 2.39 points higher than placebo, below the 5 points the reviewers treated as clinically important. Reviewers rated the effect on erectile function as probably trivial, while men were more likely to report being able to have intercourse (low-certainty evidence).
Herbal supplements overallMeta-analysis, 2018: 24 randomized trials, 2,080 men7Ginseng improved IIEF-5 scores modestly; saffron and Tribulus terrestris gave mixed results. Only seven trials had a mostly low risk of bias, and the authors said more research was needed before herbal products could be recommended.
Herbal supplements, newer poolingMeta-analysis, 2026: 14 randomized trials, 1,227 men8Positive pooled effects for ginseng and saffron; evidence for Tribulus terrestris and maca was called insufficient. Trials ran from one to six months.
L-arginine and carnitinesNetwork meta-analysis, 2024: 15 randomized trials, 1,000 men3L-arginine alone was the only single nutraceutical with a statistically significant benefit over placebo. The authors described most nutraceuticals as generally ineffective, and the clearest gains were when L-arginine or carnitines were added to a prescription PDE5 inhibitor in men with organic ED.
YohimbineMeta-analysis, 1998: seven placebo-controlled trials9Better than placebo (odds ratio 3.85). It is an old analysis of small trials, and it does not speak to the variable yohimbe products sold today.

Two cautions apply to every row. First, supplement trials usually test one standardized preparation, and the bottle on a shelf may differ in dose and purity. Second, the FDA does not approve dietary supplements before they are marketed, and it does not routinely analyze their contents.10

Why do some "natural" pills cause problems?

The FDA states that many products sold for sexual enhancement, including male enhancement supplements, ED treatments and stamina pills, are likely to contain dangerous hidden ingredients, are sometimes falsely advertised as dietary supplements or all-natural, are sold online and in stores, and often carry many positive reviews. Its notifications list is updated frequently, and the agency says the list covers only a small fraction of contaminated products.4

A laboratory study shows what that looks like. Researchers tested 40 herbal sexual-performance supplements bought in Ghana. Ten contained sildenafil, two vardenafil and one tadalafil, with estimated daily intakes above 25 mg sildenafil equivalents, and six above 100 mg.11 Only one sample held a plant compound (icariin), at a level too low to explain its activity. That was one market and one sample set, so it cannot be turned into a US rate. It does show why the hidden-drug risk is taken seriously: a man on nitrates who takes an unlabeled sildenafil product has no way to know he is exposed to the combination the Viagra label contraindicates.1

What non-drug options are there?

The best-supported "alternatives" cost nothing at a pharmacy counter. In a two-year randomized trial, obese men with ED who lost weight and exercised more improved their erectile function scores, while the control group did not.5 A meta-analysis of exercise trials found that physical activity improved erectile function.6 The American Urological Association guideline also covers other treatment routes, including devices, injections and surgery, for men who cannot or prefer not to use pills.12

Habits that interact with treatment matter as well; what the labels say about alcohol and ED medication is a good place to start.

Should a supplement ever replace a medical visit?

ED can be an early sign of other conditions. In a large study, men who developed ED went on to have more cardiovascular events.13 NIDDK lists diabetes, heart and blood vessel disease, high blood pressure and certain medicines among the causes.14 If ED is new or persistent, the useful step is an evaluation, not a trial of several shelf products. If low desire is part of the picture, hormones are a separate question; see whether ED is related to low testosterone.

How to read a supplement label more critically

Talk to a clinician. This article explains the evidence; it cannot tell you what is right for you. A licensed clinician who knows your health history and medications can.
Important safety information. PDE5 inhibitors (sildenafil, tadalafil, vardenafil) must not be taken with nitrates in any form, including nitroglycerin, or with guanylate cyclase stimulators such as riociguat, and need caution with alpha-blockers.1 The most common side effects are headache and flushing.1 An erection lasting more than four hours needs emergency care, and sudden loss of vision or hearing means stopping and getting medical help right away.15 Only a licensed clinician who knows your health history and medications should decide whether these are safe for you.

Your questions

Can you buy Viagra over the counter?

Not in the US. Viagra is a prescription medicine, and so are the other approved ED pills. Products sold without a prescription as Viagra alternatives are dietary supplements.

Do over-the-counter ED supplements help?

Evidence is limited. A Cochrane review found ginseng's effect on erectile function probably trivial, and a network meta-analysis found L-arginine the only single nutraceutical with a significant benefit, with most others ineffective or unproven.

Are male enhancement pills safe?

The FDA says many products sold for sexual enhancement are likely to contain hidden drug ingredients, which can cause serious problems, especially for men taking nitrates.

What can I try instead of a pill?

Weight loss and exercise improved erectile function scores in randomized trials. The American Urological Association guideline also covers devices, injections and surgery.

Read next

Part of our guide: Getting ED Treatment: Doctors, Online Prescriptions and FDA-Approved Options

Sources

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  3. Barbonetti A, et al. Nutraceutical interventions for erectile dysfunction: a systematic review and network meta-analysis. J Sex Med. 2024. PubMed 39279185.
  4. U.S. Food and Drug Administration. Sexual Enhancement and Energy Product Notifications.
  5. Esposito K, et al. Effect of lifestyle changes on erectile dysfunction in obese men: a randomized controlled trial. JAMA. 2004. PubMed 15213209.
  6. Silva AB, et al. Physical activity and exercise for erectile dysfunction: systematic review and meta-analysis. Br J Sports Med. 2017. PubMed 27707739.
  7. Borrelli F, et al. Herbal dietary supplements for erectile dysfunction: a systematic review and meta-analysis. Drugs. 2018. PubMed 29633089.
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  12. American Urological Association. Erectile Dysfunction (ED) Guideline.
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  14. National Institute of Diabetes and Digestive and Kidney Diseases. Erectile Dysfunction (ED). National Institutes of Health.
  15. Eli Lilly. CIALIS (tadalafil) prescribing information. DailyMed, U.S. National Library of Medicine.