Comparison of the effects of different erectile drugs on improving the quality of sexual life ?
1. Sildenafil citrate (such as Viagra): This is a widely used erectile drug that increases blood flow in the penile sponge by inhibiting the activity of phosphodiesterase-5, thereby helping patients achieve or maintain an erection. Viagra usually takes effect quickly under sexual stimulation and has a moderate duration of efficacy, which helps patients improve their quality of sexual life.
- Tadalafil tablets: Tadalafil is also a phosphodiesterase-5 inhibitor, similar to sildenafil citrate, which improves erectile function by increasing blood flow in the penile sponge. The duration of tadalafil's efficacy is relatively long and can be maintained for several hours, providing patients with a more lasting sexual experience.
- Vardenafil Hydrochloride Tablets: Vardenafil Hydrochloride is a selective inhibitor of phosphodiesterase specific to cyclic guanosine monophosphate. It increases the concentration of cyclic guanosine monophosphate in cells to fully expand the corpus cavernosum of the penis. Vardenafil hydrochloride is usually taken about 30 to 60 minutes before sexual intercourse, and its efficacy can generally last for about three hours. It is a good choice for patients who need to improve erectile function within a specific time frame.
