Bioavailability: Bioavailability means how much of a medicine reaches the bloodstream in a usable form after it is taken. It can differ by route, formulation and food intake.
Explains why the same milligram amount can behave differently in an oil, capsule or inhaled product.
Useful in advanced education pages rather than entry-level service pages.
It is a pharmacology term, not a direct measure of how “strong” or “good” a medicine is for a patient.