10.1 Cardiac Arrythmia Drugs

Question 1

What are the 4 main classes of antiarrhythmic drugs?

Answer 1

1 - Sodium channel blockers
2 - Beta blockers
3 - Potassium channel blockers
4 - Calcium channel blockers

Question 2

How do class 1 drugs work?

Answer 2

Inhibiting voltage gated sodium channels

This inhibits action potential propagation