What Does Viagra Do?

What Does Viagra Do?

Since Viagra’s debut in 1998, it has taken and has held the spot of most effective erectile dysfunction drug. Millions of men, and their partners, have benefited from the drug’s use, but many do not exactly realise what it does to the human body. They do not realise how fast it works or how long it lasts.

How Long Does It Take to Take Effect?

Pfizer, the manufacturer of Viagra, has recommended that you take Viagra about one hour before you plan on having sex. Some studies have even suggested that the effects start working even sooner than that. There were some men that achieved an erection within just 12 minutes of taking the drug, although the researchers could not conclusively link it to the use of Viagra.

The maximum concentration of Sildenafil, the active ingredient in Viagra, is not reached until about an hour after the person takes it. The effects of Viagra can be delayed if the person has eaten food while or after taking it. It can take less than 30 minutes for men to start experiencing erections when they take Viagra.

Viagra has a half-life of four hours. This means that every four hours after taking it, the drug only has half as much potency. Even about 10 to 12 hours later, men are still able to achieve erections but for shorter periods of time.

How Long Does It Last?

After the hour that it takes Viagra to reach full potency, many men reported being able to hold an erection for an average of about 33 minutes. By 12 hours, it decreased to about 16 minutes.

 

What Does It Do While in the Body?

Viagra is clearly effective based on physical results, but what does it do on a cellular level? The way that Viagra allows men to achieve erections is by inhibiting one little enzyme. It inhibits the enzyme known as phosphodiesterase type 5 (PDE5). This enzyme has an effect on muscle contraction in penile tissue. Viagra inhibits this enzyme, allowing the blood vessels to expand and relax, which leads to an increase in blood flow into the penis and hence an erection.

This translate into actual results in the bedroom as shown in a study of 4,000 men suffering from ED. These men were treated with Viagra and had reported a low firmness score prior to taking the drug. After taking the drug, it was shown to increase the firmness of an erection in about 80 percent of the men.

Viagra was the first of its kind, but it was certainly not the last. However, no other drug before it inhibited PDE5 as a way to treat erectile dysfunction, and it was truly a ground-breaking discovery when it entered the market. The leading competitors of Viagra are Levitra, Spedra, and Cialis. They’re newer, but none have come close to surpassing Viagra. Despite these more recent ED treatments, many studies have proved that Viagra at the dosage of 50 mg has greater efficacy than all of Viagra’s competitors when they were all compared to a placebo.

About Kamal HaiderDr Kamal Haider is an experienced GP having worked in various hospital specialties as a junior doctor after graduation from University College Hospital in 2000. During this period of training, Dr Haider decided that general practice was his calling and so embarked upon becoming a member of the Royal College of General Practitioners, as he found himself very passionate about the provision of high quality, holistic, patient-focused medicine.

He has developed excellent skills in investigating and managing a range of medical conditions, both acute and related to chronic disease and in integrating care for the patient as a whole. His specialty lies in preventative medicine and promoting health. He believes in practicing what he preaches and plays football and cycles regularly. He has attained an FA coaching badge and works with youngsters of varying ages and socio-economic backgrounds, and thoroughly enjoys helping youngsters to make the most of their lives.
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