Methods We analyzed the medication condition of central nervous system drugs by the soft "Statistics and automatic analyze of hospital drug medication".

P-glycoprotein inhibitors can get drugs across the blood-brain barrier. It is of great importance to improve the blood concentration in brain and bioavailability of central nervous system drugs.

Caffeine is a central nervous system stimulant that ACTS in many ways like other stimulant drugs such as amphetamines, waking you up and increasing your muscular activity.