Describe three factors that can influence the time course of the behavioral effect of a drug, and show that you understand how each factor influences the time course

What will be an ideal response?

1) route of administration, 2) speed of absorption (both influence how fast the drug acts and how long it takes to reach its maximum effect), and 3) how the drug is eliminated (mainly influences how long it lasts). Other possible answers include protein binding, drug distribution (e.g., fat storage). Bonus: discussion of metabolism by CYP450 enzymes in the liver, drug disposition tolerance.