Biological Availability

**Definition:** The extent to which the active ingredient of a drug dosage form becomes available at the site of drug action or in a biological medium believed to reflect accessibility to a site of action.

**Tree numbers:** - G03.787.151 - G07.690.725.129

**Synonyms:** - Availability, Biological - Bioavailability - Physiologic Availability - Availability, Biologic - Biologic Availability - Availability, Physiologic