Tipsheet Staff
Caffeine is the most widely consumed psychotropic central nervous stimulant drug in the United states. And it is legal, and encouraged to be taken by consumers.
The alteration of the function of the brain due to this drug is due to the changes caffeine causes within the brain and its neruotransmitters and neuroreceptors.
As with other drugs of this severity, tolerance and withdrawal occur often and in time. Side effects include anxiety and insominia, primarily. Others have said it takes about 9 hours for caffeine to clear from the body,
Dan Abshear