September 17, 2021

Generic Viagra (Sildenafil): Know everything

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Generic Viagra, or sildenafil, is standard treatment for erectile dysfunction. Viagra is the brand name for sildenafil, but there is no difference between the generic and branded versions. Both require a prescription to order.

This article covers generic Viagra, including how it works, how to use it, and where to get it. It also takes into account the risks of this drug, including its side effects and the high prevalence of counterfeit versions.

Sildenafil citrate, or simply sildenafil, is the active ingredient in the brand name drug Viagra. Sildenafil is called Generic Viagra when people take it at a dose of 25, 50, or 100 milligrams (mg) per day.

Sildenafil is an inhibitor of phosphodiesterase type 5 (PDE5), the standard treatment for erectile dysfunction. Other PDE5 inhibitors on the market include avanafil (Stendra), tadalafil (Cialis), and vardenafil (Levitra).

Learn more about alternatives to Viagra here.

Pfizer received its original patent for Viagra in 1998, and it expired in 2020. However, Pfizer authorized Teva Pharmaceuticals to sell generic Viagra in 2013, before the patent expired. Pfizer also launched its own generic Viagra under the Greenstone subsidiary in 2017.

After the patent expired, the Food and Drug Administration (FDA) cleared other pharmaceutical companies, including Aurobindo, Mylan, Reyoung, Cambia, and Lupine, to market generic Viagra.

People are familiar with generic Viagra as a treatment for erectile dysfunction. However, at a lower dose, sildenafil can also treat pulmonary hypertension. When doctors use it for this indication, they usually call it Revatio, if they are using the branded version, or generic Revatio.

Aside from these standard uses, doctors may prescribe off-label sildenafil for conditions such as Raynaud’s disease and altitude sickness.

Studies from 2005 and 2006 support the effectiveness of sildenafil in treating Raynaud’s phenomenon, but there is conflicting evidence on its effectiveness in treating altitude sickness.

A 2009 review have found that it is also effective in the treatment of disorders of female sexual arousal resulting from the use of antidepressants, diabetes or multiple sclerosis.

While experts believe Viagra is safe for people with heart disease, the authors of a 2017 study advise against its use in people with valvular heart disease.

During arousal or sexual stimulation, blood flow to the penis increases, causing it to expand, straighten, and harden.

An erection gradually goes away when an enzyme called PDE5 breaks down cyclic guanosine monophosphate (cGMP), which is responsible for relaxing smooth muscles which leads to increased blood flow.

Sildenafil treats erectile dysfunction by relaxing muscles and increasing blood flow to the penis while preventing PDE5 from breaking down cGMP. The higher levels of cGMP improve a person’s ability to achieve and maintain an erection.

As with Viagra, doctors prescribe generic Viagra in doses of 25, 50, or 100 mg per day. The prescribed dosage will vary depending on the person’s response to treatment and their physical condition.

Since its effect is rapid and short-lived, it is best to take generic Viagra one hour before intercourse. However, a person can take it between 30 minutes and 4 hours before having sex.

On average, it takes an hour for the drug to reach its peak in blood. A person can take generic Viagra with or without food. People who want to eat should opt for a light meal, as eating a heavy meal that is high in fat may delay the action of the medicine.

People living with health problems or taking certain medications should see their doctor first. For example, those who take nitrates, which are chest pain medications, should not take sildenafil as it could cause their blood pressure to drop.

A person can take generic Viagra as needed, but not more than once in 24 hours. The drug does not cause an erection without arousal or sexual stimulation.

It is important not to take the pill with grapefruit, as this fruit reduces the absorption and breakdown of the drug in the small intestine. This can lead to a person having toxic levels of drugs in their blood.

Taking generic Viagra can cause side effects, including:

As sildenafil is a prescription drug in the United States, people who wish to purchase generic Viagra need a valid medical prescription.

People who want to get their prescriptions discreetly can have an online consultation, also called telemedicine, with a licensed doctor and get home delivery of the drug.

Many health clinics sell both genuine and generic FDA approved Viagra through licensed pharmacies based in the United States. Some places where people can get a prescription and order Generic Viagra online include:

Viagra is one of the the most counterfeit drugs around the world, with many people operating online platforms to sell counterfeit Viagra.

To date, US Customs and Border Protection have had numerous reports of the seizure of counterfeit Viagra pills. The FDA Also reports that one-third of sexual enhancement supplements available online contain undisclosed ingredients.

People have to refill their prescriptions at licensed pharmacies in the United States. All US online pharmacies must have a US address and contact number.

People who plan to buy online should make sure that the retailer needs a valid prescription and that the retailer’s website has a Verified Internet Pharmacy Practice Site Seal (VIPPS).

They can also check if the National Association of Boards of Pharmacy has accredited them as a digital pharmacy.

A person who suspects that they have erectile dysfunction may wish to try a treatment, such as generic Viagra. Since these are prescription drugs, a person will need to see a doctor.

Symptoms of erectile dysfunction include:

  • not always having an erection when there is a desire to have sex
  • erection does not last long enough for sex
  • inability to have an erection at all

Although mild side effects, such as headaches, are not uncommon, anyone with the serious side effects below should contact a doctor immediately:

Generic Viagra, or sildenafil, is the same medicine as brand name Viagra. People should exercise caution when purchasing and taking these prescription drugs as their misuse can be dangerous to a person’s health.

Many online pharmacies and health care providers allow people to get a prescription and order generic Viagra. People should search for licensed companies with addresses in the United States and beware of fake Viagra retailers.

A doctor or telemedicine service can provide prescriptions, recommendations, and advice on taking Generic Viagra. They can also recommend alternative options.


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