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In addition to sildenafil the drug contains: microcrystalline cellulose, calcium hydrophosphate, croscarmellose sodium, magnesium stearate.
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Opadry blue and clear are used to make the film coating of the tablets. The composition of Viagra does not differ depending on the concentration of the active ingredient.
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Only Top ProductsThe dosage form of Viagra is film-coated tablets. -
The best DoctorsThe drug Viagra is designed to treat erectile dysfunction. -
Great FeedbackWhen sexual arousal occurs, the product renews decreased erectile function
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The natural mechanism of erection is related to the release during sexual stimulation
Sildenafil is a potent and selective inhibitor of cGMP-specific FDE-5 (phosphodiesterase-5) in the cavernous body, where FDE-5 plays an important role in the breakdown of cGMP.
The effect of the substance on erectile function is peripheral: the drug does not have a direct relaxing effect on the isolated cavernous body of the man, while powerfully enhancing the relaxing effect of nitric oxide on it.
Sexual arousal is required for sildenafil to have the necessary therapeutic effect.
TCmax (time of reaching maximum plasma concentration) when taking sildenafil orally on an empty stomach is from 0.5 to 2 hours, bioavailability ranges from 25 to 60%.
Sildenafil is metabolized in the liver by microsomal isoenzymes of the cytochrome system.
The drug description states that Viagra is intended to treat erectile dysfunction resulting from vascular or nervous disorders and is defined as the inability to achieve and maintain an erection in the penis for the time required for successful intercourse.