Penegra is a Sildenafil based medicine. Trial indicates that the drug is extremely beneficial in treating Erectile Dysfunction. This condition is characterised with flaccidity of the organ despite of natural sexual arousal. Sildenafil citrate is chief ingredient resulting in significant mechanism in the body – associated with penile erection. This ingredient can be chemically depicted as 1-[[3-(6, 7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4, 3-d] pyrimidin-5-yl)-4-ethoxyphenyl] sulfonyl]-4-methylpiperazine citrate with the structural formula C22H30N6O4S.
This ingredient is considered to be a potent agent with ability to counteract Type-5 of the Phosphodiesterase enzymes. There are different Phosphodiesterase enzymes, some of which are significant for the body. However, Phosphodiesterase Type-5 (abbreviate as PDE-5) is particularly, indirectly disadvantageous on the penile abilities. Thus, using Penegra as treatment for ED is beneficial as it can undermine this Phosphodiesterase enzyme and restore ability to get a harder erection.