Backed By Science

[33] Mixing it with amyl nitrite, another

vasodilator, is particularly dangerous and potentially fatal.

Key Words

Viagra might sound like a quick fix, but it rarely is. Because the research hasn’t proven that it’s beneficial for women, most healthcare providers consider it a last resort — not a first-line treatment. While it may improve physical arousal for some, Viagra doesn’t directly impact desire. If you’re struggling with low libido, you’re not alone, and real help is available. Sign up for our Health Essentials emails for expert guidance on nutrition, fitness, sleep, skin care and more.

Side effects

The steroid medication may raise your blood pressure and cause heart palpitations Lower your risk by sticking to the right dose and avoiding long-term use without medical guidance Authorized take-back programs, services and drop-off locations are the best, safest way to get rid of expired medicine These illegal supplements have negative impacts for vital organs and may cause psychosis, heart attacks and more Popular among teens, these inhalants give you a quick high, with serious harmful effects ‘Black box warnings’ on medications outline potential risks and important instructions These similar versions of brand-name drugs are safe, effective and often less expensive Though these painkillers work in different ways, they can both help reduce a fever and pain These tiny saltwater larvae can get trapped under your swimsuit and trigger an itchy reaction called seabather’s eruption Searching nature for edible items requires training and knowledge to avoid poisonous plants Yes, but you can protect yourself with hats, scarves or even hair sunblock Aging WellAllergiesCancer Care & PreventionChronic PainCold, Flu & Respiratory IllnessesDiabetes & EndocrinologyDigestiveEar, Nose & ThroatEye CareInfectious DiseaseLungOral HealthParentingPregnancy & ChildbirthRecipesRheumatology & ImmunologySenior HealthSex & RelationshipsSleepUrinary & Kidney HealthWeight Loss Rendered: Mon May 25 2026 22:05:31 GMT+0000 (Coordinated Universal Time) Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4][8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9] It is unclear if it is effective for treating sexual dysfunction in females. [8] It can be taken orally (swallowed by mouth), intravenously (injection into a vein), or through the sublingual route (dissolved under the tongue). [8][10] Onset when taken orally is typically within twenty minutes and lasts for about two hours. The 2007 Ig Nobel Prize in aviation went to Patricia V. Agostino, Santiago A.

Plano, and Diego A.

What happens if a woman takes Viagra?

Sildenafil has been studied for high-altitude pulmonary edema (HAPE), but its use is currently not recommended for that indication. In clinical trials, the most common adverse effects of sildenafil use included headache, flushing, indigestion, nasal congestion, and impaired vision, including photophobia and blurred vision. [4] Some sildenafil users have complained of seeing everything tinted blue (cyanopsia). [24] This cyanopsia can be explained because sildenafil, while selective for PDE5, does have some affinity for PDE6, which is the phosphodiesterase sildenafil pills found in the retina. Patients thus taking the drug may experience colorvision abnormalities.

How it Helps You Do It

Some complained of blurriness and loss of peripheral vision. In July 2005, the US Food and Drug Administration (FDA) updated labeling for tadalafil (Cialis), vardenafil (Levitra), and sildenafil (Viagra) to reflect a small number of post-marketing reports of sudden vision loss, while acknowledging that "...it is not possible to determine whether these oral medicines for erectile dysfunction were the cause of the loss of eyesight or whether the problem is related to other factors such as high blood pressure or diabetes, or to a combination of these problems. "[25] A careful review of pooled data from clinical trials containing well documented information about the dose and duration of exposure to the drug for a large number of patients, yields no evidence for an increased risk of non-arteritic anterior ischemic optic neuropathy or other adverse ocular events associated with PDE5 inhibitor use. Rare but serious adverse effects found through postmarketing surveillance include prolonged erections, severe low blood pressure, myocardial infarction (heart attack), ventricular arrhythmias, stroke, increased intraocular pressure, and sudden hearing loss. [4] In October 2007, the FDA announced that the labeling for all PDE5 inhibitors, including sildenafil, required a more prominent warning of the potential risk of sudden hearing loss. Golombek of Universidad Nacional de Quilmes, Argentina, for their

discovery that sildenafil helps treat jet lag recovery in hamsters.

• Clinical research into sildenafil for women includes various dosage trials.
• Women using sildenafil should monitor blood pressure to avoid adverse effects.
• The safety profile of sildenafil in women is less documented than in men.
• Sildenafil’s impact on female sexual desire is still under scientific investigation.
• Women should avoid sildenafil if pregnant or breastfeeding unless prescribed.
• Alternative therapies for female sexual dysfunction include counseling and hormone therapy.

Professional athletes have been

• Some studies suggest sildenafil might help women with sexual arousal disorder.
• The drug's vasodilating effects can have cardiovascular implications in women.
• Women should be cautious of counterfeit or unapproved sildenafil products.
• Combining sildenafil with other ED drugs in women is not recommended without medical advice.
• Psychological support remains an important aspect of treating female sexual dysfunction.
• Ongoing clinical trials aim to establish the safety and efficacy of sildenafil for women.

documented using sildenafil, believing the

The bottom line

Concomitant use of nitric oxide donors, organic nitrites and nitrates,[30] such as: nitroglycerinisosorbide mononitrateisosorbide dinitratesodium nitroprussidealkyl nitrites (commonly known as "poppers") Concomitant use of soluble guanylyl cyclase stimulators, such as riociguat Sildenafil should not be used if sexual activity is inadvisable due to underlying cardiovascular risk factors. Sildenafil's popularity with young adults has increased over the years. [32] Sildenafil's brand name, Viagra, is widely recognized in popular culture, and the drug's association with treating erectile dysfunction has led to its recreational use. [33] The reasons behind such use include the belief that the drug increases libido, improves sexual performance,[33] or permanently increases penis size. [34] Studies on the effects of sildenafil when used recreationally are sildenafil citrate 150 mg red pill limited, but suggest it has little effect when used by those who do not have erectile dysfunction. opening of their blood vessels will enrich their muscles.

How should this medicine be used?

[13][14] It is available as a generic medication. [15][16] In the United Kingdom, it is available as a pharmacy medicine. The primary indication of sildenafil is treatment of erectile dysfunction (inability to sustain a satisfactory erection to complete sexual intercourse). Its use is now one of the standard treatments for erectile dysfunction, including for males with diabetes mellitus. Tentative evidence suggests that sildenafil may help males who experience antidepressant-induced erectile dysfunction.

Cite this article

While sildenafil improves some markers of disease in people with pulmonary arterial hypertension, it does not appear to affect the risk of death or serious side effects. Sildenafil and other PDE5 inhibitors are used off-label to alleviate vasospasm and treat severe ischemia and ulcers in fingers and toes for people with secondary Raynaud's phenomenon;[9][21] these drugs have moderate efficacy for reducing the frequency and duration of vasospastic episodes. [9] As of 2016,[update] their role more generally in Raynaud's was not clear. Sildenafil has shown some potential for improving exercise performance at high altitudes. However, its overall efficacy is not clear. In turn, they believe it will enhance their performances.

Author information

Common side effects include headaches, heartburn, and flushed skin. [8] Caution is advised in those with cardiovascular disease. [8] Rare but serious side effects include vision problems, hearing loss, and prolonged erection (priapism) that can lead to damage to the penis. [8] Sildenafil should not be taken by people on nitric oxide donors such as nitroglycerin, as this may result in a serious drop in blood pressure. Sildenafil acts by blocking phosphodiesterase 5 (PDE5), an enzyme that promotes breakdown of cGMP, which regulates blood flow in the penis.

Corresponding author

[8] It requires sexual arousal to work, and does not by itself cause or increase sexual arousal. [8] It also results in dilation of the blood vessels in the lungs. Pfizer originally discovered the medication in 1989 while looking for a treatment for angina. [11] It was approved for medical use in the United States and in the European Union in 1998. [5][8][11][12] In 2023, it was the 151st most commonly prescribed medication in the United buy sildenafil online uk States, with more than 3 million prescriptions. Acetildenafil and other synthetic structural analogs

Why trust our experts?

Care should be exercised by people who are also taking protease inhibitors for the treatment of HIV infection. Protease inhibitors inhibit the metabolism of sildenafil, effectively multiplying the plasma levels of sildenafil, increasing the incidence and severity of side effects. Those using protease inhibitors are recommended to limit their use of sildenafil to no more than one 25 mg dose every 48 hours. [4] Other drugs that interfere with the metabolism of sildenafil include erythromycin and cimetidine, both of which can also lead to prolonged plasma half-life levels. The use of sildenafil and an α1 blocker (typically prescribed for hypertension or for urologic conditions, such as benign prostatic hypertrophy) at the same time may lead to low blood pressure, but this effect does not occur if they are taken at least 4 hours apart. of sildenafil which are PDE5 inhibitors have

• Doctors may prescribe sildenafil off-label for women based on individual assessment.
• Patient education about realistic expectations is essential when using sildenafil.
• Sildenafil’s mechanism involves enhancing nitric oxide signaling in blood vessels.
• Women with liver or kidney problems need careful evaluation before sildenafil use.
• Viagra was initially tested for women before focusing on men’s erectile issues.
• Alternative options like vaginal lubricants are also common for female sexual problems.

been found as adulterants in a

• Sildenafil may help women with conditions like arousal disorder, but evidence varies.
• There is ongoing research into safe, effective female-specific doses of sildenafil.
• Side effects experienced by women can include dizziness, nausea, or visual disturbances.
• Consumption of alcohol while on sildenafil can increase side effect risks.
• Female sexual dysfunction can have psychological, hormonal, and physical causes.
• Sildenafil is not a cure-all; proper diagnosis is important for targeted treatment.

number of "herbal" aphrodisiac products sold over-the-counter.

THE BIG “O” (OVERVIEW)

In one study, a 25 mg dose was shown to cause no significant change in erectile quality, but did reduce the postejaculatory refractory time. [35] This study also noted a significant placebo effect in the control group. Unprescribed recreational use of sildenafil and other PDE5 inhibitors is noted as particularly high among users of illegal drugs. [36] Sildenafil is sometimes used to counteract the effects of other substances, often illicit. [33] Some users mix it with methylenedioxymethamphetamine (MDMA, ecstasy), other stimulants, or opiates in an attempt to compensate for the common side effect of erectile dysfunction, a combination known as "sextasy", "rockin' and rollin'", "hammerheading", or "trail mix".