Kamagra is currently available in several forms and strengths, 100mg being the most powerful one. One dose of Kamagra contains 100mg of Sildenafil Citrate, which should be suitable to give you a correctly stiff and lasting erection, no interest what your age or physical situation is. Please, remember that you are not supposed to take more than 100mg of Kamagra at a time or take it more than once within 24 hours.