non-dihydropyridine calcium channel blocker drug pathway diltiazem drug pathway 2015-10-21T08:40:13Z PW:0002076 The pharmacokinetics and pharmacodynamics pathway of diltiazem- a benzothiazepine L-type calcium channel blocker used in the treatment of hypertension and other cardiovascular conditions. Genetic variations can result in changes in drug availability and can cause differences in the response of the organism to the drug. pathway vpetri