Alternative to caffeine - same effects, different chemical?

Question

I seem to have a problem with caffeine. I tend to experience a lot of the negative effects, like diuresis, extreme hunger suppression and paranoia, at two or three cups of coffee, while I don't experience the positive effects, like alertness and focus, without drinking as many as five or six cups. Are there chemicals with similar effects, but that aren't caffeine?

Answer 1

Have you tried any B-vitamin complexes and increasing your water intake? Worth a shot since your having all the issues with caffeine.