Timolol can produce which of the following effect in an asthmatic patient?: (A) Bronchodilation, (B) Bronchospasm, (C) Decreased bronchial secretions, (D) Increased bronchial secretions
Answer is B. Timolol is a non-selective Beta blocker (1st generation) It is used for treatement of primary open angle glaucoma. It can cause bronchoconstriction (by blocking beta 2 receptors) paicularly in asthmatics.