Levitra 40 mg tablet is a medication used to treat (erectile dysfunction) ED in men. Erectile dysfunction is a condition where a man is not able to maintain an erection sufficient for sexual activity. Levitra contains the active ingredient vardenafil, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. A man’s body releases nitric oxide in response to sexual stimulation, which in turn causes the breakdown of cyclic guanosine monophosphate (cGMP). cGMP relaxes the smooth muscles in the blood vessels of the penis, allowing a boost in blood flow, resulting in an erection. However, in men with erectile dysfunction, the enzyme phosphodiesterase type 5 breaks down cGMP, leading to difficulty in achieving or maintaining an erection. Levitra works by inhibiting the action of phosphodiesterase type 5, thereby increasing the levels of cGMP in the penis. This promotes the relaxation of the smooth muscles and allows for improved blood flow, enabling a man to achieve and maintain an erection during sexual stimulation. The recommended dose of Levitra is 40 mg, taken orally, approximately 25 to 60 minutes before sexual activity. However, depending on individual response and tolerability, the dose can be adjusted to a maximum of 60 mg or reduced to 5 mg.