The term "pharmaceutical solution" refers to a liquid preparation that contains one or more active pharmaceutical ingredients (APIs) dissolved in it. These solutions are typically used for administration via injection, either intravenously or subcutaneously, and can be prepared by dissolving the API(s) in water, alcohol, or another suitable solvent. Pharmaceutical solutions are commonly used to deliver medications quickly and efficiently to the body's tissues, and they can also be formulated as suspensions, emulsions, or gels depending on the specific needs of the drug product.