Sildenafil Citrate 100mg Tablets

The patient making a presentation has had penile bypass surgery. 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. Spontaneous sex for less than $2/day If you’ve searched the web for information about ED medication, you’ve no doubt seen Viagra® mentioned alongside a drug called sildenafil.

Important Safety Information

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. Given how often they’re interchanged, you might be wondering if there are any differences when it comes to sildenafil vs. Viagra.

• Sildenafil citrate 100mg tablets are used to treat erectile dysfunction temporarily.
• It is important to confirm the medication dose with a healthcare professional.
• Store sildenafil in a cool, dry place away from direct sunlight.
• Take sildenafil exactly as prescribed; do not self-medicate or adjust dose.
• Always check for possible interactions with other medications before use.
• Avoid taking sildenafil with fatty foods to ensure faster onset.
• Patients should report any adverse reactions to their doctor immediately.
• Men with diabetes need special consultation before using sildenafil.
• Sildenafil might cause a sensation of dizziness or upset stomach.
• The medication must be used responsibly to prevent potential dependence.
• Do not share sildenafil with others; it is prescribed for individual use.
• Be aware of possible rare side effects like priapism or severe allergic responses.

Put simply, Viagra is the FDA-approved brand-name version of sildenafil, a prescription medication for ED. Sildenafil is the main active ingredient in Viagra. Like the store-brand salad dressing made with the same ingredients as its brand-name equivalent, sildenafil is just as good as the “little blue pill,” but cheaper. Keep reading to learn more about the similarities and differences between these drugs, and how to choose the best one for you.

Sildenafil citrate (often shortened to “sildenafil”) is the main ingredient in Viagra. After parent company Pfizer’s patent expired, other manufacturers were allowed to manufacture generic Viagra under the name of its active ingredient, sildenafil.

8.6 Renal Impairment

The downside, however, is that side effects tend to last longer too. The main difference between generic sildenafil and Viagra is marketing. The main ingredient in Viagra is sildenafil, meaning that the drugs are essentially the same. However, Viagra is marketed and prescribed strictly for erectile dysfunction, while generic sildenafil can be prescribed for PAH as well. Viagra is also known as “the little blue pill” because of its blue color, while generic sildenafil tends to be a white color.

What should I tell my healthcare provider before taking sildenafil?

Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. You should always consult your doctor or other healthcare professional before taking any medication. All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. Sildenafil is an effective treatment for erectile dysfunction. It contains the same active ingredient as branded alternatives. The terms are pretty much interchangeable, the way you might say “Kleenex®” to refer to a tissue. The only real difference between the two medications for ED is how much they cost.

• Sildenafil citrate 100mg tablets are used globally for erectile treatment.
• The medication’s onset of action is typically within 30-60 minutes.
• Patients should avoid heavy or greasy foods before taking sildenafil.
• Do not consume alcohol as it can impair the effectiveness.
• Sildenafil does not cure erectile dysfunction but helps manage symptoms.
• Always take medication exactly as your doctor directs.
• Side effects can include dizziness, flushing, and nasal congestion.
• Check with your doctor if you are on other medications for safety.
• The medication is not suitable for patients with eye conditions like retinitis pigmentosa.
• Use sildenafil responsibly to prevent misuse or adverse health effects.
• Be aware of and report any persistent pain or changes in vision.
• Keep all medical appointments to monitor treatment progress.

Viagra® is a well-known and widely used medication for treating erectile dysfunction (ED), one of the most common sexual dysfunctions in the world.

12.3 Pharmacokinetics

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. Formulated as that iconic little blue pill, Viagra has the longest history of any FDA-approved ED treatment on the market today.

7. Interactions

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. Concerning the orgasmic response, testosterone modulates the integrity of genital sensory receptors.

US Brand Name

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 sildenafil (Viagra). 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. Both generic sildenafil and Viagra work by increasing blood flow to your penis, making it easier for you to get and maintain an erection.

Drug Label Information

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. Sildenafil (Viagra) is effective for all sorts sildenafil citrate 200mg price of erectile dysfunction in 69% of people.

A note about sex and gender

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. 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. Sildenafil belongs to a class of enzyme-inhibiting drugs called phosphodiesterase type 5 inhibitors, or PDE5 inhibitors. Like the others in its class, sildenafil works by relaxing the muscle tissue inside the walls of your blood vessels, allowing the vessels to dilate, and improving blood flow throughout some parts of your body — including your penis. It's important to note that these erectile dysfunction medications aren't wonder drugs. They only work if you're sexually stimulated. But if you’ve got sexual stimulation and these pills, research shows that you have an effective, reliable erectile dysfunction treatment. If you’re curious about the history of the brand and generic names, here’s the quick version: Two years and many clinical trials later, in March of 1998, the new medication — now called Viagra — received approval from the Food and Drug Administration and hit the market as a prescription medication for the treatment of erectile dysfunction. Two years and many clinical trials later, in March of 1998, the new medication — now called Viagra — received approval from the Food and Drug Administration and hit the market as a prescription medication for the treatment of erectile dysfunction. As the first oral medication for ED, Viagra became incredibly popular.

8.2 Lactation

Sildenafil works by encouraging more blood to flow to the penis, ensuring a strong erection when you need one. It’s effective for 82% of men.1 Find the clinically proven ED treatment that suits you best. No names, no logos, no delivery fee. 4.6* from over 33,000 people like you. BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP “Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013).

How is sildenafil supplied (dosage forms)?

“Efficacy and Safety of Sildenafil Citrate for Treatment of Erectile Dysfunction in a Population With Associated Organic Risk Factors.” Journal of Andrology (2013). Answer a few simple questions to get the treatment you need. The most common sexual sildenafil citrate 150 mg red pill 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. Organic or physical causes for sexual dysfunction in men include vascular, hormonal and neurologic factors. Large-scale TV ad campaigns made the little blue pill famous.

2.1 Dosage Information

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 sildenafil 100mg blue pill devices, Muse, injections, bypass surgery and implants.