If you’re looking for a consistent and effective erectile dysfunction medication, try Malegra tablet. Among its active ingredients is sildenafil. It is a phosphodiesterase type 5 inhibitor. All these drugs work by increasing blood flow to the penis in men who are feeling sexually stimulated. The effects of this medication take 36 hours to manifest, so you should not take it more frequently than once every 24 hours. Typically, Malegra sildenafil is taken orally, ideally 30 to 1 hour before sexual activity.