Pharmacology General d4a7d1a3 Sudden withdrawal of which of the following drugs could result in serious adverse cardiovascular changes in a patient taking the drug over a long time: A Phenelzine (MAO inhibitor) B Enalapril (ACE inhibitor) C Clonidine (α2 agonist) D Fluoxetine (serotonin reuptake inhibitor) High-Yield Explanation No explanation provided.