👉 The term "cauf" is a term used in medicine and pharmacology to refer to the action of a drug on its target cells or tissues. In other words, it refers to the specific chemical compound that acts as a receptor for a drug. The exact mechanism by which this occurs can vary depending on the type of drug and the cell being targeted. For example, if a drug is administered to a patient with cancer, it may bind specifically to proteins within the cancer cells that are involved in