Calcium Channel Blockers

Also written as CCB.

First-line drugs are thiazides, ACE inhibitors or ARBs, and calcium channel blockers.

What our notes say

First-line drugs are thiazides, ACE inhibitors or ARBs, and calcium channel blockers. (Junior Clerkship in Internal Medicine (MBIM4100) main exam, Paper One: 31 Januar)
In people of African descent without diabetes or heart failure, a calcium channel blocker or a thiazide-like diuretic is usually more effective first line than an ACE inhibitor or ARB. (Cardiology Question Bank: 15 Clinical MCQs)
Stable narrow-complex irregular tachycardia (AF/Aflutter): Rate control is preferred acutely using intravenous beta-blockers (e.g., metoprolol) or non-dihydropyridine calcium channel blockers (e.g., diltiazem, verapamil). (Arrhythmias and ECG interpretation)
Use non-dihydropyridine calcium channel blockers (verapamil) if beta-blockers fail or are contraindicated. (Cardiomyopathies)
Calcium channel blockers: ethosuximide blocks T-type calcium channels in thalamic neurons, which controls absence seizures. (Clinical Pharmacology I (MBPL 4400) main exam: 25 January 2023)
Non-dihydropyridine calcium channel blockers can worsen reduced ejection fraction. (Cardiology Question Bank: 15 Clinical MCQs)