The document discusses pharmaceutical solutions, which are liquid preparations that contain one or more soluble substances dissolved in a suitable solvent. It outlines the key components of solutions, including the solvent, solute, and any additives. Some advantages are easy dosing and administration, while disadvantages include potential instability and bulkiness. Examples of different types of solutions are provided, such as syrups, elixirs, linctuses, and others. Key factors in formulation like solubility techniques and common active ingredients are also summarized.