Erectile dysfunctionis a problem that occurs in men at any age. There are many drugs available in the market to treat this problem. One of them is vidalista 40 which is used to treat erectile dysfunction. If you have an allergic reaction to any medicine, consult a doctor before taking this medicine. How many side effects do you experience from taking vidalista 40mg such as chest pain, dizziness, lightheadedness and irregular heartbeat? If these side effects are seen for a long time, seek medical advice immediately. This drug is used to relax the muscles and blood vessels of the body.