Malegra is a prescription medication that contains sildenafil citrate as its active ingredient. It is classified as a phosphodiesterase type 5 inhibitor used to treat erectile dysfunction. The drug enhances blood flow to the penile tissue by relaxing smooth muscle in the vasculature. This relaxation increases the delivery of oxygen and nutrients during sexual arousal leading to a firmer erection. The active compound sildenafil binds to the phosphodiesterase enzyme thereby preventing the breakdown of cyclic guanosine monophosphate and sustaining the vasodilatory signal. The sustained cyclic guanosine monophosphate maintains the relaxation state and supports the physiological response required for normal erectile function.

Malegra is a phosphodiesterase type 5 inhibitor used to treat erectile dysfunction by improving penile blood flow. It works by blocking the enzyme that breaks down cyclic guanosine monophosphate allowing the chemical messenger to remain longer. The sustained cyclic guanosine monophosphate relaxes smooth muscle cells in the corpora cavernosa leading to vasodilation. This relaxation increases the capacity of the erectile tissue to fill with blood during sexual stimulation. Malegra is absorbed quickly after oral administration reaching peak plasma concentrations within about an hour. The drug is primarily metabolized by the liver enzyme cyp3a4 which modifies its structure for elimination. Its metabolites are cleared from the body through the kidneys and bile giving an overall half-life of roughly four to five hours. The combined pharmacodynamic effect of prolonged cyclic guanosine monophosphate activity and systemic absorption provides the intended therapeutic response for erectile dysfunction.

Malegra may cause headache, dizziness, and flushing. Some users report nasal congestion while others experience mild stomach discomfort. Visual disturbances such as blurred vision are possible but infrequent. Back pain and muscle aches have been documented in clinical studies. These effects are generally mild and transient. The risk of prolonged erections is very low and documented. Sensitivity to temperature changes may occur in rare cases. Overall, most side effects are short lived and self limiting.

Malegra may cause headache as a common side effect. Some users report dizziness or lightheadedness. Flushing of the skin can occur due to increased blood flow. Nausea and stomach discomfort are possible but not frequent. Vision changes such as blurred sight or color distortion have been reported. Back pain may appear in some individuals. Rarely muscle aches or fatigue can be observed. These effects are generally mild and tend to resolve with time.