Which of the following groups of medications are classified as neuromuscular blocking agents?

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Choline, adrenaline, and amphetamineGlycine, neostigmine, and physostigminePancuronium and rocuroniumPirenzepine, propranolol, and propanthelineNone of the above

Explanation

Neuromuscular blocking agents are drugs that interfere with transmission at the neuromuscular junction, causing muscle relaxation. Pancuronium and rocuronium belong to this class. The other options include drugs with different pharmacological actions such as stimulants, cholinesterase inhibitors, or autonomic blockers.