Malegra 100 mg is a drug used to treat impotence. This is the drug that works best for treating erectile dysfunction in men. Men who take this medication can get a strong erection during sexual activity thanks to an ingredient called sildenafil. This drug increases blood flow to the penile tissues in men. An hour before your planned sexual activity, take this medication. The active components in this medication take six hours to wear off. You can take this medication with or without food. Adhere to your doctor's instructions when using this medication. When taking this medication, sip water.