These ingredients give the pill its shape and make it easier for your body to metabolize. One of the main causes of erectile dysfunction is the build-up of the enzyme phosphodiesterase type 5 (PDE5), which restricts blood flow to the penis and prevents or reduces the firmness of an erection.

Sildenafil acts as a PDE5 inhibitor, blocking the action of PDE5 and allowing more unrestricted blood flow, increasing the chance of an erection.

Who Makes Generic Viagra?

Pharmaceutical giant Pfizer accidentally discovered the benefits of sildenafil for erectile dysfunction. Researchers tested the drug to treat high blood pressure and angina (chest pain associated with heart disease). They found that the drug was particularly effective at inducing erections. Viagra was approved by the Food and Drug Administration (FDA) in 1998, making it the first oral medication prescribed specifically for erectile dysfunction.

How To Use Generic Viagra

As with Viagra, doctors prescribe generic Viagra in doses of 25, 50 or 100 mg per day. The dose prescribed depends on the person's response to treatment and their physical condition. Because its effects are rapid and short-lived, doctors recommend taking Generic Viagra one hour before sexual activity. However, it can take a person 30 minutes to 4 hours before having sex. On average, it takes an hour for the drug to reach peak blood levels.

A person can take Generic Viagra with or without food. People who want to eat should eat a light meal, as a heavy meal high in fat can delay the effects of the drug. People living with health conditions or taking certain medications should consult their doctor first. For example, those taking nitrates, which are medicines for chest pain, should not take sildenafil as it can cause a drop in blood pressure. A person can take Generic Viagra as needed, but no more than once in 24,

 hours.

The drug does not cause an erection without sexual arousal or stimulation. It's important not to take the pill with grapefruit or grapefruit juice, as this fruit decreases the absorption and breakdown of the drug in the small intestine. A person has toxic levels of drugs in their blood.

What Is Generic Viagra Used For?

Sildenafil is best known as a treatment for erectile dysfunction, the inability to achieve or maintain an erection.

Sildenafil should be taken before sexual intercourse, bearing in mind that its effects last only a few hours. Sildenafil is also approved to treat pulmonary hypertension (PH): high blood pressure in the arteries of the lungs and on the side of the heart. Revatio is the brand of Sildenafil that is prescribed for PH. Generic sildenafil is always sold as sildenafil. There are currently no other brand names for the drug other than Viagra and Revatio.

In the United States, sildenafil for ED or PH requires a prescription. The UK allowsthe drug to be sold without a prescription, in part to discourage the counterfeit sildenafil market. Sildenafil is one of the most commonly counterfeited. medicines in the world.

How Do PDE5 Inhibitors Work?

Sildenafil does not cure erectile dysfunction. Treats the symptoms of erectile dysfunction.