Malegra is a drug that is very effective in treating erectile dysfunction. This drug contains the main ingredient of sildenafil which is also known as PDE-5 inhibitor. The penis contains certain enzymes that interfere with erection, so this drug protects against those enzymes and helps maintain erection for a long time. You should take this medicine only once a day. If you take an overdose of this medicine, it may cause side effects. Such as dizziness, headache, difficulty in breathing etc. Visit our store welloxpharma for more information.