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| Other names | Methisosildenafil; Dimethyl sildenafil |
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| Formula | C23H32N6O4S |
| Molar mass | 488.61 g·mol−1 |
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Aildenafil (methisosildenafil) is a syntheticdrug that is astructural analog ofsildenafil (Viagra).[1] It was first reported in 2003.[2] Like sildenafil, aildenafil is aphosphodiesterase type 5 inhibitor.
Aildenafil has been found as anadulterant in a variety of supplements which are sold as "natural" or "herbal" sexual enhancement products.[3][4][5][6][7] TheUnited States Food and Drug Administration has warned consumers that any sexual enhancement product that claims to work as well as prescription products is likely to contain such a contaminant.[8]
Aildenafil is approved for use in China.[9]