Viagra

Mechanism and Usage
Sildenafil also known under Viagra brand is a well-known medicine for treating erection issues and impotence. Its mechanism is based on ability to relax muscular tissue and stimulate bloodstream in certain body areas. Physicians may recommend Viagra for other purposes that are not mentioned here.

Another sildenafil-based drug is Revatio, which is used by healthcare professionals for treating cases of pulmonary arterial hypertension. It is also able to improve physical activity tolerance in both women and men.

Dosage and Taking
Only onó dose of Viagra can be taken during 24 hours. In case of painful erection or prolonged erection (lasting more than 4 hours) consult with your physician or seek for immediate medical assistance. Continuous erection, which is also called priapism, may be harmful for the penis.

Safety Info
Viagra may affect blood flow to the eye and its optic nerve negatively, resulting in a sudden vision issues. Few men who were reporting this side effect mostly had certain health problems: hypertension, elevated cholesterol level, heart problems, diabetes, smoking, or age over 50. It is unclear though whether a Viagra dose entailed vision loss. In case of symptoms described above, stop taking Viagra and seek for immediate medical assistance.
Viagra is not compatible with nitrate-containing medicines used in patients with heart problems and/or chest pain. Viagra is not for you if you take isosorbide dinitrate, sosorbide mononitrate (Monoket, ISMO, Imdur), nitroglycerin. Certain recreational means known as "poppers" may also contain nitrates.

When taken together with a nitrate-containing drug, Viagra decreases blood pressure rapidly. Such a combination may lead to fainting, heart attack, or even a stroke. One should be particularly careful about the following symptoms during a sexual intercourse: pain in the chest, neck, arms, jaw (or tingling and / or numbness); giddiness; sickness. Contact a healthcare professional at once as it may be a sign of serious health problems connected with Viagra side effects.

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