drug pathway various drug pathway 2015-11-23T10:58:52Z One of the subgroups of the Therapeutic Chemical Classification System developed by WHO for grouping drugs acting as antidotes, chelators, detoxifying agents, and others. The pharmacokinetics and pharmacodynamics of such agents. Genetic variations can result in changes in drug availability and can cause differences in the response of the organism to the drug. PW:0002281 pathway vpetri