Prescription drugs are called prescription drugs (ethical drugs) in English and over-the-counter drugs are called over-the-counter drugs in English. It is also called "Over The Counter" abroad, and it has become a common name all over the world. The English abbreviation of prescription drug is Rx, which consists of two letters, R is the 1 letter of the recipient, indicating the meaning of giving to the patient (recipient), and X represents the content of the prescription.