Drug formulation refers to the process of creating and developing medicines in different forms that are safe and effective for patients to use. There are several synonyms that can be used for the term drug formulation, such as pharmaceutical formulation, drug delivery system, dosage forms, pharmaceutical preparation, and medication formulation. Pharmaceutical formulation involves the combination of active and inactive ingredients in different ratios to form a medicine that is suitable for use in a particular population. Drug delivery systems refer to the different mechanisms used to deliver the medicine to the patient's body, such as tablets, capsules, injections, patches, and suppositories. Dosage forms refer to the different forms of the medicine, such as liquids, powders, and gels, used to administer the medication. Pharmaceutical preparation involves the manufacturing process of the drug, including testing, packaging, and labeling. Medication formulation refers to the design of the medicine and how it is administered to the patient.