1.Pharmaceutical Solutions. Solutions are: Dosage forms prepared by dissolving the active ingredient(s) in an aqueous or non aqueous solvent. . Solutions can be formulated for different routes of administration Orally: Syrups, elixirs, dropsIn mouth and throat: Mouth washes, gargles, throat sprays. In body cavities: Douches, enemas, ear drops, nasal sprays. On body Surfaces: Collodions, lotions. .