Rx is a sign of astrology, which was first written by doctors in front of prescriptions, not indicating prescription drugs. Later, it evolved into a capital R with a cross at the end, printed like Rx. And r is the abbreviation of Latin recipe, which means please take it. When used in pharmacies, it means that pharmacists can take medicines according to prescriptions, so people use Rx to refer to prescription drugs.
Prescription drugs not only need to be sold by medical practitioners, but also need to be used under the guidance of doctors or pharmacists.
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Rx is relative to over-the-counter drugs. ? The difference between Rx drugs and OTC drugs is mainly reflected in the definition of management.
Compared with prescription drugs, over-the-counter drugs are defined as convenient for the public to use drugs. The purchase of such drugs does not depend on the doctor's prescription, and patients can choose and use them according to the drug instructions.
Therefore, over-the-counter drugs are called "drugs that can be bought over the counter" abroad, that is, over-the-counter drugs, or OTC for short. When we buy OTC drugs every day, if we are careful, we will find OTC logo printed on the packaging box of OTC drugs, in which the logo of Class A OTC drugs is red and the logo of Class B OTC drugs is green.
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