The drug Viagra belongs to the clinical and pharmacological subgroup of drugs used in the treatment of sexual dysfunction in men. The main active component in the drug Viagra is sildenafil citrate.
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Pharmacological action
The use of Viagra can help men suffering from erectile dysfunction, but it should be remembered that the tablet works only with sexual arousal. In its absence, the drug will not have the desired effect. In cases where a man is aroused, his penis is filled with a certain amount of blood, which allows him to achieve a natural erection. The drug works only in cases where a man experiences natural sexual arousal. After the end of sexual intercourse, the penis returns to its natural relaxed state. In other words, the drug sildenafil acts exclusively on the natural mechanisms of erection, this property is the indisputable advantage of Viagra, its novelty, and the secret of its enormous popularity.
In cases where the erection lasts more than 4 hours, you should immediately consult a doctor. Certain medications can hinder the natural process of blood outflow from the penis. If the erection lasts more than 6 hours, it can seriously harm the penis. A man may not get an erection because the penis is not filled with the required amount of blood. This phenomenon is called erectile dysfunction, and many men suffer from this problem. The heartbeat also tends to increase during intercourse, so sex is not advisable for people with heart disease. In cases where you decide to start any measures aimed at restoring potency, consult a doctor about the condition of your heart. If you experience dizziness, chest pain, or nausea during intercourse, stop intercourse and consult a cardiologist.
Indications for the use of Viagra
Such a drug is often prescribed mainly for:
erectile dysfunction of various nature, including psychogenic, organic, or mixed origin;
sexual dysfunction in men.
The drug Viagra is effective only with sexual stimulation.
Instructions for the use of Viagra
The drug is taken orally approximately 1 hour before the expected sexual intercourse.
The average single dose of the drug is 50 mg up to 1 time per day. If necessary, according to the indications, the daily dosage of the drug can be increased or decreased up to 2 times. In this case, the maximum dose is considered to be 100 mg.
Contraindications
The following conditions may be contraindications for the prescription and use of the drug Viagra:
anatomical pathologies of the penis;
Peyronie's disease;
angulation or cavernous fibrosis of the penis;
tendency to bleeding;
liver pathologies;
sickle cell anemia;
arterial hypotension or hypertension of severe forms;
exacerbation of ulcers of the gastrointestinal tract;
myeloma disease;
diseases leading to the development of priapism;
leukemia;
various heart diseases;
heart failure;
dangerous forms of arrhythmia;
unstable angina;
contraindications to sexual activity;
taking nitrates or nitric oxide donors.
In addition, the drug Viagra is contraindicated for use:
children;
pregnant women;
nursing women;
myocardial infarction or stroke for 6 months.
Side effects of Viagra
In some situations, the use of the drug Viagra, depending on the dosage used, may be accompanied by the following phenomena:
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