Product Description

Sildenafil, also known as Viagra, belongs to a category of drugs called phosphodiesterase type 5 inhibitors, which also includes drugs such as vardenafil and tadalafil. Sildenafil exerts its effect through inhibiting phosphodiesterase type 5, which is an enzyme that is specifically found in the cavernous bodies of the penis, but also in the lungs. When sexual arousal occurs, the nerve endings in the penis produce and release nitric oxide (NO), which is a signaling molecule that initiates a series of events culminating in an erection. NO stimulates the production of cGMP, which is an active compound that dilates the blood vessels in the penis and thus causes an erection. However, the action of cGMP is short-lived because it is rapidly destroyed by phosphodiesterase type 5 and becomes inactive. This mechanism is especially important in people with erectile dysfunction. Sildenafil is able to help such patients by inhibiting the action of PDE5 and thus greatly prolonging the life of cGMP and thus maintaining an erection. Brand Viagra is manufactured by Pfizer in France.

Viagra is also very useful in the treatment of certain cases of pulmonary hypertension, where it causes dilation of blood vessels in the lungs that are excessively constricted. Sildenafil also effectively relieves the symptoms of altitude sickness through the same mechanism of action. Although sildenafil and other drugs from the same category are effective and safe for these specific disorders, you should seek the professional advice of a doctor before initiating treatment with sildenafil to minimize the potential side effects and adjust the dosage according to your specific response. As with other drugs, sildenafil may cause certain side effects, which are usually temporary and mild.

Side effects
Side effects of sildenafil include headaches, abdominal and digestive disturbances, flushing due to dilation of blood vessels and nausea. Severe side effects are very rare, but may include abnormal heart rhythm, increased pressure inside the eyes, stroke or priapism. To obtain maximum benefits and to improve your sexual life, make sure that a medical professional is monitoring you during treatment with sildenafil or other similar drugs.

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