Pharmacology An old patient Ram Kishore having asthma and glaucoma is to receive a β blocker. Regarding β blocking drugs: A Metoprolol blocks β2 receptors selectively B Esmolol's pharmacokinetics are compatible with chronic topical use C Nadolol lacks β2 blocking action D Timolol lacks the local anaesthetic effects of propranolol 💡 Explanation An old patient Ram Kishore having asthma and glaucoma is to receive a β blocker. Regarding β blocking drugs: ✓ Correct Answer: D. Timolol lacks the local anaesthetic effects of propranolol