DIFFERENTIAL DIAGNOSIS OF DRUGS / TOXINS CAUSING PREMATURE VENTRICULAR CONTRACTION

Differential diagnosis of drugs / toxins causing premature ventricular contraction are : 
-tricyclic antidepressant 
-theophylline 
-nicotine 
-halothane 
-ether
-digitalis 
-chloroform 
-catecholamine 
-caffeine 
-anti arrhythmic 
-alcohol