The process of combining, mixing, or altering ingredients to create a medication tailored to the needs of an individual patient.

In every field of medicine, there are some patients who don’t respond to traditional methods of treatment. Sometimes they need medicines that are not available commercially. Sometimes they simply need a different method of ingesting a medication. With a written prescription a compounding pharmacist can and often does address many patient dosing problems by customizing a medication to meet a specific need.