Generic Levitra Professional 20mg contains vardenafil, a medication that enhances blood flow to the penis. This increased blood flow facilitates an erection when sexually stimulated. The drug works by inhibiting a specific enzyme, phosphodiesterase-5 (PDE5), which regulates blood vessel relaxation. By blocking PDE5, vardenafil allows for greater blood vessel dilation, resulting in improved erectile function.
Absorption and Onset
Oral administration leads to rapid absorption, typically reaching peak plasma concentrations within 60 minutes. The onset of action varies depending on individual factors, but many men experience effects within 30 to 60 minutes of taking the medication. Food can slightly delay absorption; consider taking it on an empty stomach for faster results.
Duration of Effect
The effects generally last for 4-5 hours. This duration allows ample time for sexual activity. However, remember that the drug only works in the presence of sexual stimulation; it does not cause spontaneous erections.