367. Beta blockers in ACS – indications, contraindications, mechanism / When should ACE inhibitors be started in ACS? Contraindications? / Why are calcium channel blockers not indicated in ACS? July 6th, 2008 by reuben in ACS Back Top Tags: card 366. NTG administration protocol and cautions / When should morphine be given in ACS? 368. ASA dose and mechanism of action in ACS / Mechanism and indication for glycoprotein IIb/IIIa inhibitors in ACS / Why is clopidogrel favored vs. ticlopidine? Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.