Pharmacology Question: MOA of moricizine:prolongs APDshortens APDno change in APDcalcium channel blecker Pharmacology Interview QuestionAnswer: prolongs APD Previous QuestionNext QuestionIndicate the irreversible alfa receptor antagonist: Tolazoline Labetalol Prazosin PhenoxybenzamineExplain which of the following antitubercular drug contraindicated in pragnancy. INH ethambutol rifampicin streptomycin