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
Which of the following is a prodrug- 
Select and explain. 
A. Neostigmine, B. Captopril, C. Esmolol, D. Enalapril
D: Enalapril
Answer: D: Enalapril 
Explanation: Ans. is 'd' i.e., Enalapril Prodrugo Few drugs are inactive as such and need conversion in the body to one or more active metabolites,o Such a drug is called a prodrug.o All the drugs in following table are very important, sorry, I can not shorten the listProdrugLevodopaEnalaprila - MethyldopaChloralhydrateDipiveffineOxcarbazepinePrednisoneBacampicillinSulfasalazineCyc lophospham ideMercaptopurineFluorouracilSulindacAzathioprineCortisoneBenorilateProguanilZidovudinTerfenadineProntosilo Advantages of prodrugs over active formMore stableBetter bioavailabilityLess side effects and toxicity.