Vil ikke THCen uansett kicke inn mye senere enn koffeinen?

Caffeine is rapidly absorbed through the stomach and small intestine into the bloodstream, where it takes about 15-45 minutes to reach peak levels. The level of caffeine in the blood reaching the brain determines the potency of its effects on the body. Usually the central nervous system is maximally stimulated within 30-60 minutes.

There has been some research into the pharmacokinetics of THC (how it moves through and is processed by the body). See Grotenhermen's research, which showed that the peak THC concentration after smoking was between 15-30 minutes and sloped down for 1-2 hours.