Delsym 12 Hour Cough Relief 2 x 5 fl oz. Among OTC liquids per dose. Contains No Fever Reducer Or Pain Reliever. Cough suppressant. Bottles Grape Flavor. Provides relief for up to 12 hours. dose as follows or as directed by a doctor Adults and children 12 years of age and over: 10 ml every 12 hours, not to exceed 20 ml in 24 hours Children 6 to under 12 years of age: 5 ml every 12 hours, not to exceed 10 ml in 24 hours Children 4 to under 6 years of age: 2.5 ml every 12 hours, not to exceed 5 ml in 24 hours Children under 4 years of age: do not use.