Sildenafil (marketed as Viagra) was the first successful pharmaceutical for the treatment of erectile dysfunction. The drug is an inhibitor of phosphodiesterase 5, an enzyme involved the regulation of smooth muscle function. Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue), oxygen (red) and sulphur (yellow).

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TOP22812570

Source:

達志影像

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RM

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須由TPG 完整授權

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N/A

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No

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