👉 Bioavailability is a measure of how much a medication reaches the blood stream, or in other words, how easily it is absorbed into the body's cells and distributed throughout the body. It is calculated as the percentage of medication that enters the bloodstream after being ingested compared to the total amount ingested. For example, if a drug is taken by mouth, the bioavailability would be 100%, meaning that every gram of the drug inhaled will be fully absorbed into the bloodstream. If
