It is estimated that 1 out of 10 men struggle with erectile dysfunction during their lifetime. This is a serious problem that continues to grow. It used to be believed that older men mostly suffer from it, but studies show that more and more often young men also have problems with potency. Therefore, it is not surprising that drugs for potency are so popular, including the most famous Viagra. Buy Viagra and what you should know about her.
Erectile dysfunction can be associated with various diseases, such as diabetes, hypertension, atherosclerosis, multiple sclerosis or depression. They are also affected by taking some medications. Lifestyle 
Also, improper nutrition, lack of physical activity, smoking, and alcohol abuse are factors that cause erectile dysfunction, which affects an increasing number of men. Although this may be an unpleasant problem, it is worth taking measures to eliminate it - it is best to consult a doctor, who will help find out the cause and choose the appropriate treatment.
From the article you will learn:
1 What is Viagra?
2 How does Viagra work?
3 What are the contraindications to the use of Viagra?
What is Viagra?
Viagra Kyiv — one of the most popular drugs for the treatment of erectile dysfunction. Almost everyone is associated with a small blue pill in the shape of a diamond, which, swallowed before planned sexual activity, allows you to have a satisfying sexual act.
The active substance of Viagra is sildenafil - it belongs to the group of phosphodiesterase 5 type (PDE5) inhibitors. The positive effect of sildenafil on potency problems was discovered by chance. Clinical trials were conducted to check whether this substance can be useful in the treatment of hypertension and angina pectoris. Although the drug was ineffective in this regard, it was also noted that it affects the erection of the penis.
After this discovery, in 1998, sildenafil was introduced as a drug for the treatment of erectile dysfunction. Since the appearance of sidenafil on the drug market, many studies have been conducted, confirming its effectiveness and safety. Currently, Viagra is one of the drugs of first choice in the treatment of erectile dysfunction of various etiologies.
The effect of Viagra
During sexual arousal, processes occur in the male body, including: production of nitric oxide, relaxation of smooth muscles, and increased blood flow to the penis. All this complements the erection supported by chemical compounds, including cyclic guanosine monophosphate (cGMP) and phosphodiesterase type 5 (PDE 5). In people with erectile dysfunction, these connections are destroyed faster, which leads to flaccidity of the penis. Such drugs as Viagra prevent the rapid destruction of these compounds, so the erection can last longer.
Sildenafil affects, for example, the concentration of cGMP in the cavernous bodies of the penis - and this compound is produced by the body only in the conditions of sexual excitement. Thus, Viagra cannot function properly without sexual stimulation. After swallowing the pill, an erection will not appear, the drug also has no effect on libido. If sildenafil is taken during meals, this time may be increased.
Viagra - contraindications
Although Viagra is very popular and is the drug of first choice, not everyone can use it. First of all, it is contraindicated for people with allergies and hypersensitivity to sildenafil or any other ingredient contained in the drug.
Men, whose health does not allow them to lead a sexual life, should also refuse drugs that affect erection. People with severe cardiovascular diseases, such as unstable angina and severe heart failure.
Other contraindications include:
• severe liver failure,
• recent stroke or myocardial infarction,
• taking some medicines (primarily those that release nitric oxide)
• Hereditary degenerative changes of the retina
•anatomical deformities of the penis
•hypotension
Particular caution should be observed when using Viagra for people with an increased risk factor for cardiovascular
vascular diseases. This medicine is intended for men and therefore should not be taken by women.
Resume
Viagra is the most frequently used drug for men with erectile dysfunction. It helps maintain an erection during the time required for sexual intercourse, and its action is due to the appearance of sexual arousal. Recently, Viagra can be bought without a prescription, and the active substance of Viagra - sildenafil - can be found in many drugs for potency.
