Viagra User Reviews & Ratings

When daily testosterone was given, subsequent sildenafil (Viagra) use resulted in IIEF (the International Index of Erectile Function questionnaire used to determine erectile function) scores improving significantly. Other risk factors for erectile dysfunction include neurologic problems (multiple sclerosis, stroke), depression and medications for treating diabetes, hypertension, heart disease and depression. There are many oral therapies for erectile dysfunction, but the only approved medication in the US is the PDE 5 enzyme inhibitor sildenafil (Viagra). Unapproved therapies, some of which are available in the US and some elsewhere, some of which have data to prove efficacy and some not, include tadalafil (Cialis), vardenafil (Levitra), yohimbine, phentolamine, trazodone, apomorphine and neutraceuticals. PDE5 inhibitors act to relax penile erectile tissues with sexual stimulation thus enhancing your ability to get an erection.

• Viagra can interact with medications for HIV, raising safety concerns.
• It should be used with caution in men with liver or kidney disease.
• The medication was part of a broader understanding of vascular function.
• Recreational use of Viagra without ED is unsafe and discouraged.
• It is not a cure for ED but a treatment option to improve quality of life.
• Proper counseling by healthcare providers optimizes treatment outcomes.
• The medication is part of a class of drugs known as PDE5 inhibitors.
• Avoiding fatty foods can help Viagra work faster and more effectively.

Sildenafil (Viagra) is effective for all sorts of erectile dysfunction in 69% of people. Why is there a need for another pill? In some cases the erection is not hard enough, sometimes sildenafil (Viagra) just doesn’t work. Structurally vardenafil (Levitra) is similar to sildenafil, while tadalafil (Cialis) is very different.

3. There are limitations as to how often you can take Viagra®.

These effects may be more intense if you take birth control pills or drink alcohol. Side effects of Vyleesi include a temporary increase in blood pressure and a decrease in heart rate. It can also cause nausea and isolated spots of skin lightening (focal hyperpigmentation). Viagra is FDA approved to treat erectile dysfunction. It doesn’t have approval for treating female sexual dysfunction, and studies thus far have had mixed results.

Erectile dysfunction

There’s no “female Viagra,” but there are a couple of drugs with approval to treat sexual dysfunction associated with specific conditions. There are many reasons for low sex drive. Before taking Viagra or any other medication, talk with your doctor about the potential benefits, risks, and side effects of these medications for you. The most common sexual dysfunctions in men include lack of interest, premature ejaculation and erectile dysfunction. The latter affects 52% of men between the ages of 40 and 70, including mild, moderate and complete forms of ED.

Insurance Information

Organic or physical causes for sexual dysfunction in men include vascular, hormonal and neurologic factors. Concerning vascular causes, the risk factors for atherosclerosis (including smoking, high blood pressure, diabetes (diabetics do not respond well to pills like sildenafil (Viagra)) and high cholesterol are ALSO risk factors for erectile dysfunction. Since a straddle injury or use of a narrow saddle can obstruct and impair arteries to the penis, bicycle riding is also considered a risk factor for erectile dysfunction. Little attention has been paid to endocrine factors. Testosterone modulates desire, arousal and orgasmic function. Vardenafil (Levitra) is almost 10 times more biochemically potent than sildenafil, therefore a lower dose is needed to facilitate the penile erection, potentially resulting in less side effects. Selectivity is the ability of the drug to attach to the specific enzyme PDE 5 found in penile tissues.

Product	Dosage	Quantity + Bonus	Price
Viagra Soft Tabs	100mg	60 + 6 Pills	152.94€ 145.66€	Buy
Viagra Generic	50mg	270 + 8 Pills	198.48€ 189.03€	Buy
Viagra Professional	100mg	10 Pills	44.09€ 41.99€	Buy
Viagra Oral Jelly	100mg	30 + 5 Sachets	115.76€ 110.25€	Buy
Viagra Generic	50mg	360 + 10 Pills	225.33€ 214.60€	Buy
Viagra Oral Jelly	100mg	10 Sachets	46.36€ 44.15€	Buy
Viagra Professional	100mg	20 Pills	71.14€ 67.75€	Buy
Viagra Original	100mg	64 + 4 Pills	264.15€ 251.57€	Buy
Viagra Original	100mg	4 Pills	40.94€ 38.99€	Buy
Viagra Original	100mg	22 + 2 Pills	120.71€ 114.96€	Buy
Viagra Professional	100mg	270 + 6 Pills	456.97€ 435.21€	Buy
Viagra Soft Tabs	100mg	120 + 8 Pills	232.21€ 221.15€	Buy

Vardenafil (Levitra) is more selective than sildenafil and tadalafil (Cialis) to PDE5, which again means a lower dose is needed with potentially less side effects. Tadalafil is very specific for PDE5 and is also very specific for the enzyme PDE11. Unfortunately, we don’t know much about PDE11, which is found in the heart, in the pituitary gland in the brain and in the testicles. Pharmacokinetics, half-life, is how long the medication stay s in the blood. This means that vardenafil (Levitra) should act longer than sildenafil (Viagra) but the clinical significance is not known. Tadalafil (Cialis) has the longest half-life and allows you to take the medication and not relate the sexual activity to the immediate use of the medication. The drawback is if you need nitrates after using tadalafil (Cialis), this medication lasts a long time in your blood stream and may place you at a higher risk. Younger people might do well treated with tadalafil, (Cialis) while older people with other health issues might be better off using sildenafil (Viagra) or vardenafil (Levitra) but more data are needed. The side effects of vardenafil (Levitra) are potentially less than sildenafil (Viagra), but more data are needed. In a recent study on men with erectile dysfunction and diabetes, vardenafil (Levitra) improved their erectile dysfunction. Tadalafil (Cialis) is as effective as sildenafil (Viagra), and vardenafil (Levitra) with similar side effects except for back pain that occurs occasionally with tadalafil, probably because of the long half-life. Many people stop taking drugs because they are experiencing side effects, they no longer have a partner, or they are worried about safety. Sexual activity is not a major contributor to the risk of a heart attack. Sexual activity, with or without sildenafil (Viagra) increases the chance of an MI during sexual activity by only 0.1%. If pills fail, there are vacuum devices, Muse, injections, bypass surgery and implants. The patient making a presentation has had penile bypass surgery.

Who Should Not Take These?

If you do plan on taking Viagra, consider the source. Some online sites that claim to sell Viagra are selling counterfeit drugs. These may not work like Viagra and may not be safe. To access the real thing, you’ll need a prescription. A doctor will decide on the dose and provide safety information.

How Supplied

Viagra is an ED medication that improves blood flow to the penis. Viagra is a brand name, and there’s no “Viagra for women.” There are, however, a few FDA-approved medications to treat low female sexual desire. Because it’s a pink tablet and Viagra is a blue tablet, the nickname “female Viagra” was bound to happen. But these are different drugs with different missions. Addyi is a brand name for a nonhormonal medication called flibanserin.

Generic Availability

You inject it under the skin on your abdomen or thigh about 45 minutes before you plan to have sex. Both medications are approved to treat acquired, generalized sexual desire disorder in premenopausal women. Specifically, it’s for low sexual desire that causes distress, but is unrelated to: Addyi and Vyleesi treat sexual desire, though the exact mechanism of action isn’t clear. They seem to affect certain pathways in the brain that influence sexual desire. Side effects of Addyi include low blood pressure, fainting, and nausea. In addition he takes testosterone and sildenafil as needed. This is a classic example of why people with ED need complete care: a psychological exam, history and physical exam, and diagnostic studies with long term follow-up care. Patients with ED should not just be prescribed sildenafil (Viagra) and then be lost to follow-up. Don’t believe everything you’ve heard about ‘the little blue pill’ Image content: This image is available to view online. Physician's hand holding a blue pill in the palm of his hand, offering it to a patient.

Aspect	Description	Notes
FDA Approval	Approved for erectile dysfunction and pulmonary hypertension	Ensures safety and efficacy
Prescription Requirement	Yes, prescription needed in most countries	Legal distribution restrictions
Counterfeit Risks	High risk online; authenticity varies	Purchase from reputable sources
Patent Duration	Patented until 2020s; generics now available	Price reduction post-patent expiry
Advertising Regulations	Strict rules on direct-to-consumer advertising	Limits false or misleading claims

Those four words are all that’s required to identify Viagra®, the brand name for a medication used to treat erectile dysfunction (ED). Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission.

Related/similar drugs

It helps to understand that sexual dysfunction is a complex issue. In a 2024 study, a topical cream with 3.6% sildenafil improved outcomes in people with female sexual arousal disorder (FSAD), particularly people without orgasm dysfunction. Another 2024 study found that age and hormonal contraceptives didn’t affect the effectiveness of topical sildenafil creams on FSAD. However, additional use of psychiatric medication decreased sexual desire in people using the cream and participants who used a placebo. More research is necessary to fully understand any potential benefit from the Viagra form of sildenafil for female sexual dysfunction.

Is Viagra’s dosage based on weight?

One thing that can suppress libido is the use of certain antidepressants, including: A 2025 review looks at the effects of various medications to treat antidepressant-induced female sexual dysfunction. It suggests that sildenafil may improve orgasm results and most Female Sexual Function Index scores. However, it had limited effects on pain during sexual activity. It was also not the most effective medication included in the review. Viagra may cause blood pressure to drop.

Can Viagra be crushed, split, or chewed?

That can be a problem if you already have low blood pressure or take medications that lower blood pressure. Most information about Viagra’s safety looks at male use, not female use, particularly in the long term. More research is necessary to see if the same side effects may occur. The product label doesn’t include dosing information for FSAD because it’s not the intended use. In studies, doses for female use may vary significantly. We do not endorse non-Cleveland Clinic products or services. The medication, officially known as sildenafil, debuted in 1998. Today, it’s used by millions of men around the world when they want to … well, rise to the occasion during an amorous moment. Yet myth-based questions continue to follow the little blue pill around.

• Viagra is a prescription medication used to treat erectile dysfunction in men.
• Its active ingredient is sildenafil citrate, which relaxes blood vessels.
• Viagra was approved by the FDA in 1998 as the first oral treatment for ED.
• It typically takes 30 to 60 minutes to start working after ingestion.
• The effects of Viagra can last up to 4-6 hours, depending on the individual.
• Common side effects include headaches, flushing, and nasal congestion.
• Viagra should not be taken with nitrates or certain heart medications.
• Overuse or misuse can lead to serious health complications.

Can Viagra give you a never-ending erection?

Reviews for Viagra

Concerning the orgasmic response, testosterone modulates the integrity of genital sensory receptors. Concerning the arousal response, decreased testosterone blood levels can influence the efficacy of sildenafil (Viagra). If the sildenafil response is not reliably improving erection, the physician should first check if the patient is taking the pill correctly. The physician should also check the patient’s testosterone level. One investigator in Italy gave testosterone to patients with low testosterone who did not respond to viagra online generic sildenafil (Viagra). Let’s set the record straight with the help of urologist Drogo Montague, MD.

• Viagra can improve quality of life for men with ED.
• It has a rapid metabolism, often cleared within 4 hours.
• Erectile dysfunction may indicate underlying health problems needing attention.
• Some people experience back pain or muscle aches as side effects.
• It is recommended to avoid fatty foods close to the time of taking Viagra.
• Using Viagra without medical supervision is unsafe.
• Erectile response to Viagra depends on psychological and physical factors.
• The medication is available at pharmacies with a valid prescription.

Odds are you’ve seen a Viagra commercial and heard this warning: Seek immediate medical help for an erection lasting four or more hours.