Pharmacology An example of covalent drug-receptor interaction is: A Noradrenaline binding to Beta 1 adrenergic receptor B Acetylcholine binding to muscarinic receptor C Prazosin binding to alpha 1 adrenergic receptor D Phenoxybenzamine binding to alpha adrenergic receptor 💡 Explanation An example of covalent drug-receptor interaction is: ✓ Correct Answer: D. Phenoxybenzamine binding to alpha adrenergic receptor