Table 1.

Key characteristics of pharmacokinetic treatments for drug addiction.

Characteristic	Peripheral blocker (antibody)		Increased drug metabolism
	Active immunity	Passive immunity	Enzyme	Catalytic antibody
Onset of action	Weeks to months	Immediate	Immediate	Immediate
Duration of action	Months	Days	Days	Days
Specificity of action	Very high	Very high	High	Very high
Control over treatment agent	Low	High	High	High
Possibility of saturating binding sites	Medium	Medium	Low	Low
Likely clinical use	Addiction	Toxicity/overdose	Toxicity/overdose	Toxicity/overdose