Malegra is used by men aged 18 and above to treat erectile dysfunction. The chemical constituents of sildenafil play a major role in this drug. This medicine should be taken only once a day. If you take this medicine only in excess, it can cause side effects. Women should not take this medicine. The effect of the drug lasts for 3 to 4 hours after taking the drug. You can visit our store cutepharma.com for more information or to know the prescription.