20. Each 5mL of paediatric cough syrup is to contain the following amounts of medication. Dextromethophan Hydrochloride........................................................................7.5mg Phenylpropanolamine hydrochloride................................................................... 9.0mg Guaifenenesin................................................................................................... 100.0mg Flavoured syrup, to make......................................................................................5.0mL Calculate the amount of each ingredient needed to prepare a litter of the syrup
