A regression with two or more predictor variables is called a multiple. regression. (When we need to note the difference, a regression on a single predic-. tor is called a simple regression.) Weâd never try to find a regression by hand, and. even calculators arenât really up to the task.
Different jurisdictions have different definitions of what constitutes a prescription drug. Rx is often used as a short form for prescription drug in North America-a contraction of the Latin word  recipe  (an imperative form of recipere) meaning take.
At Mayo Clinic, we take the time to listen, to find answers and to provide you the best care. Prescription drug abuse is the use of a prescription medication in a way not intended by the prescribing doctor.Prescription drug abuse or problematic use includes everything from taking a friend's prescription painkiller for your backache to snorting or injecting ground-up pills to get high.t Mayo Clinic, we take the time to listen, to find answers and to provide you the best care. Prescription drug abuse is the use of a prescription medication in a way not intended by the prescribing doctor.