Mixture is a liquid preparation meant for oral administration in which the medicament or medicaments are dissolved or suspended in a suitable vehicle. In general, several doses are dispensed in a bottle. A container with one dose is called “draught.” Mixtures are mainly prescribed for acute conditions such as cough, indigestion, diarrhea, and constipation. They are extemporaneously prepared for small number of doses. In case of further need, a fresh mixture is to be prepared before administration. They are classified into simple mixtures containing soluble substances, mixtures containing diffusible solids, mixtures containing indiffusible solids, mixtures containing precipitates forming liquids, and mixtures containing slightly soluble liquids.