Zero order kinetics is followed by all the drugs except
A barbiturate is a drug that acts as a central nervous system depressant, and can therefore produce a wide range of effects, from mild sedation to death . The kinetics of barbiturate elimination are mixed: first order at low concentrations and zero order at high ones Ref-6/e p31
Phenytoin
Barbiturates
Alcohol
Theoplylline
General anatomy