Ch-5.5 D Pharm Pharmacology

Antiarrhythmics are medications that prevent and treat a heart rhythm that is too fast or irregular also known as arrhythmias. 

Classification of Antiarrhythmic drugs:

Class I – Sodium-channel blockers

Class II – Beta-blockers

Class III – Potassium-channel blockers

Class IV – Calcium-channel blockers

Miscellaneous: – adenosine

– electrolyte supplement (magnesium and potassium salts)

– digitalis compounds (cardiac glycosides)

– atropine (muscarinic receptor antagonist)