Excretion

Getting Rid of Drugs: Renal Excretion & Elimination

A drug's journey ends where a river meets the sea: the kidney. Every minute, your kidneys sift the blood, deciding what to keep and what to send out in the urine. When they slow down — with age or disease — drugs that were perfectly safe yesterday can quietly build up to poison. This is the story of the body's last checkpoint, and why the same dose can heal a young patient and harm an old one.