other antidepressant drug pathway venlafaxine drug pathway 2016-02-02T11:58:15Z PW:0002473 The pharmacokinetics and pharmacodynamics pathway of venlafaxine, a drug used in the treatment of major depressive, anxiety and panic disorders. The drug inhibits the reuptake of key neurotransmitters such as serotonin, epinephrine and dopamine. Genetic variations can result in changes in drug availability and can cause differences in the response of the organism to the drug. pathway vpetri