(A) R and S
(B) P and Q
(C) S only
(D) R only
(A) Calcium channel blockers
(B) Potassium channel activators
(C) Sodium channel blockers
(D) Beta blockers
(A) Amiodarone
(B) Lidocaine
(C) Verapamil
(D) Propranolol
Lidocaine is a class I antiarrhythmic agent that has amide linkage. It can be easily identified by finding xylidene moiety in its structure.
(A) Antipsychotic agent
(B) Antidepressant
(C) Local anaesthetic agent
(D) Anticholinergic agent
Lidocaine is sodium channel blocker both in the heart and local neurons. Hence apart from its use as class I antiarrhythmic agent, it also widely used as local anaesthetic.
(A) Diltiazem
(B) Lidocaine
(C) Propranolol
(D) Verapamil