Viagra crystals, SEM

Viagra crystals, SEM

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Caption: Viagra crystals, coloured scanning electron micrograph (SEM). Viagra is the trade name for the drug sildenafil citrate, used to treat male impotence (erectile dysfunction). This drug enhances the smooth muscle relaxant effects of nitric oxide, a chemical that is released in response to sexual stimulation. Relaxation of the smooth muscle allows blood to enter the penis, resulting in erection.

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Keywords: biochemical, biochemistry, chemical, chemistry, coloured, compound, compounds, crystal, crystalline, crystals, drug, erectile dysfunction, erection, impotence, medication, medicine, pharmaceutical, pharmaceutics, scanning electron micrograph, scanning electron microscope, sem, sexual stimulation, sildenafil citrate, smooth muscle relaxation, treatment, viagra

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