Promethazine HCl Oral Option ought to be used with caution in sufferers with bone-marrow despair. Leukopenia and agranulocytosis have already been claimed, usually when Promethazine (Promethazine HCl) has been Employed in Affiliation with other recognized marrow-poisonous brokers.The typical effective dose of Promethazine for your Energetic therap