Viagra Generic: Where to Buy Viagra (Sildenafil)100mg Online ?
To solve problems with impaired potency, sexual desire, or early ejaculation, there are a huge number of drugs. Viagra is one of the most effective means of strengthening sexual function. The composition of this dietary supplement includes only plant substances, so the risk of negative reactions or overdose is minimal. The drug is also recommended for women to exacerbate sexual sensations and increase libido
Pharmacological properties
The main active ingredient of the tablets affects the erection in a man during the onset of excitement by increasing blood flow to the cavernous bodies of the penis.
Sildenafil inhibits the phosphodiesterase type 5 enzyme. This leads to an increase in the content of cyclic AMP, which causes relaxation of the smooth muscles of the walls of the blood capillaries and cavernous bodies of the penis, and also increases their filling with blood, causing an erection.
Also, when excited, nitric oxide is produced, which activates an increase in the content of cyclic adenosine monophosphate. The active ingredient in Viagra is believed to increase the effects of nitric oxide. The main condition for obtaining a positive effect from the use of this medication is the presence of sexual stimulation of a man and his arousal.
After taking the tablet, sildenafil is quickly absorbed from the lumen of the small intestine into the blood. Its maximum pharmacological content is reached within thirty minutes after the use of the drug, the maximum concentration is after one hour.
When taking the drug orally after a meal, the rate of absorption is slightly lower than on an empty stomach. The main component is evenly distributed throughout all tissues. Its metabolism is carried out in the liver cells with the appearance of intermediate decay products that are excreted from the body with feces. The half-life is four hours.