It would seem. That, wage slave owners do want their slaves to produce as much money for their businesses as they possibly can. And, if that means lobbying for drug laws. Then, I'm sure they do.
That would be caffeine.
No. Look at people-smuggling and drug-mules.
basically increase in drug usage and increase in STD'S... increase in the hippie movement
Drug Interactions.
An increase in free drug concentration can occur due to factors such as decreased protein binding, increased drug intake, or impaired drug metabolism. This can potentially lead to higher drug efficacy or toxicity depending on the therapeutic index of the drug. Close monitoring and adjustment of dosage may be necessary in such situations.
Mmmmm.... Drugs...
decrease
reglan
Doping
ephedine
Methampthetamines
Repeated exposure to a stimulus could increase the development of drug tolerance.