Medical MCQ - An old patient Ram Kishore having asthma and glaucoma is to receive a b blocker. Regarding b blocking drugs:

An old patient Ram Kishore having asthma and glaucoma is to receive a b blocker. Regarding b blocking drugs:

Metoprolol blocks b2 receptors selectively

Esmolol's pharmacokinetics are compatible with chronic topical use

Nadolol lacks b2 blocking action

Timolol lacks the local anaesthetic effects of propanolol

Question Category:

Correct Answer:

Timolol lacks the local anaesthetic effects of propanolol

Description:

Metoprolol is a cardioselective (b1 selective) blocker and not b2 selective. Esmolol is the shoest acting b -blocker and is useful for acute treatment. Nadolol is a non-selective b-blocker. It blocks both b1 as well as b2 receptors. Propanolol possesses maximum local anaesthetic activity whereas timolol lacks this propey.

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