barbiturate and benzodiazepine Provide evidence of your understanding of the ways in which time course events of barbiturate and benzodiazepine actions contribute to the onset of psychological and/or physical dependence.    

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"Time course" refers to two distinct events. (1) It may refer to time needed for the barbiturate or benzodiazepine to enter the system. (2) It may refer to the time needed to exit the system.

A rapid time course event with rapid onset action tends to produce psychological dependence. On the other hand, a rapid time course event with rapid exit action tends to produce physical dependence. The correlation between time course events and psychological and/or physical dependence can be illustrated like this:

  1. rapid onset action ==> psychological dependence
  2. rapid exit action ==> physical dependence

You might even correlate more accurately with an illustration like this:

  1. rapid onset action ==> psychological dependence
  2. physical dependence <== rapid exit action

 

http://www.u.arizona.edu/~tommyb/Depressants.html

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