A patient of glaucoma with bronchial asthma presents to the emergency with status asthamaticus, causative agent might have been)
Ans. is 'b' i.e. Timolol eye drops Timolol maleate is the most widely used drug for open angle glaucoma.It is non-selective B blocker (Blocks both B1 and B2B2 is responsible for bronchodilation, therefore blocking B2 would aggravate asthma.Instead of Timolol, Betaxolol can be used because it is a selective B1 blocker and causes less respiratory side effects.
Pilocarpine eye drop
Timolol eye drop
Betaxolol eye drop
Levobunolol eye drop
Primary Open-Angle Glaucoma and Related Conditions