In today's world, men face many challenges, and among the most important ones are sexual concerns. vidalista black 80 mg continues to be the most effective drug for treating erectile dysfunction and male impotence. This drug is only used by men who are between the ages of 18 and 65. Men take this tablet either 30 minutes or 1 hour prior to engaging in sexual activity. Meals can be taken with or without this medicine. It takes four to six hours for this drug to start working. You are free to take this medication as prescribed by your doctor.