This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacokinetics, Subject name: Pharmacology
Zero order kinetics is shown by which drug - 
Select and explain. 
A. Digoxin, B. Theophylline, C. Phenobarbitane, D. Etomidate
B: Theophylline
Answer: B: Theophylline 
Explanation: Ans. is 'b' i.e., Theophylline 1 o Drugs showing zero/pseudo-zero order kinetics :# Phenytoin# Tolbutamide# Theophylline# Warfarin# Alcohol# Salicylates (Aspirin)