Which drugs that improve male function are more stable in metabolism and excretion?

1.Sildenafil: Sildenafil (such as Viagra) is mainly metabolized by the liver, and its metabolites are mainly excreted through the kidneys. Due to its clear metabolic and excretory pathways, it has high stability and low risk of side effects in the body.

2.Tadalafil: Tadalafil (such as Cialis) is also metabolized by the liver and converted into inactive metabolites in the liver. These metabolites are subsequently excreted through the kidneys and intestines. Due to its long-lasting properties, tadalafil has relatively high stability in metabolism and excretion.
3.Vardenafil: Vardenafil is mainly metabolized by the liver and excreted through the kidneys. Its metabolism and excretion pathways are relatively clear, so its stability in the body is also good.