The term 'curative quantity' can be summed up by the word 'DOSE', which is a four letter word. A DOSE is an amount of medicine, drug, or other treatment that is given or taken at any one time. It is usually measured in milligrams (mg) or milliliters (ml). Doses are often prescribed by doctors to treat illnesses or diseases, and they can vary depending on the individual's age, weight, and medical condition.