The concept of dose is fundamental in toxicology. Dose refers to the amount of a substance that enters the body. It is typically expressed in relation to body weight, such as milligrams of substance per kilogram of body weight (mg/kg). Understanding dose is essential because it helps determine the potential toxicity of a substance. A key principle in toxicology is that "the dose makes the poison," meaning that any substance can be harmful in sufficiently high doses.
