Generic Levitra typically lasts anywhere from 4 to 8 hours. However, the actual duration of its effects can vary from person to person. Factors such as age and overall health can influence how long the medication remains effective. Levitra is a phosphodiesterase-5 (PDE-5) inhibitor. This type of medication works by increasing the amount of a natural chemical called cyclic guanosine monophosphate (cGMP) in the body. This helps relax the muscles in the penis, allowing more blood to flow in and resulting in an improved erection.
It is important to note that Levitra should only be taken when needed, rather than on a daily basis. When taken as needed, the medication typically works for about 4 to 8 hours, although this can vary. To maximize the effects of the medication, it is best to take it for around one hour before engaging in sexual activity. In general, Levitra can remain effective in the body for up to 24 hours after dosing. However, the effects of the medication will typically start to diminish after the eight-hour mark. Taking the medication with or without food can also influence how long Levitra remains effective in the body.