This problem is more common in men between 40 and 50 years of age than in most men. This problem is seen in men at any age. Sildenafil citrate is a common ingredient in kamagra 100mg. This drug takes about 30 minutes to start working. So take this medicine one hour before sexual intercourse. See a doctor immediately if you notice any minor or major side effects after taking this medicine. If you would like to purchase a kamagra 100 tablet at a lower price visit our site mygenerix.com.