tokens: " Coricidin " , " Coricidin 'D " ( decongestant ) , or " Coricidin HBP " ( for " h " igh " b " lood " p " ressure ) , is the name of a drug marketed by Schering-Plough that contains dextromethorphan ( a cough suppressant ) and chlorpheniramine maleate ( an antihistamine ) .