Over-the-counter (OTC) medicines are sold directly to consumers without a prescription. There are approximately 800 OTC active ingredients available today that constitute more than 300,000 OTC medicines in the healthcare marketplace. They are sold in more than 750,000 retail outlets including pharmacies, grocery stores, convenience stores, mass merchandise retailers, etc. Like prescription drugs, OTC medicines are regulated by the U.S. Food and Drug Administration and are safe and effective when used as directed. The Drug Facts label instructs consumers on how to properly choose and use them. OTCs treat many common ailments including pain, fever, cough and cold, upset stomach, and allergies.
The meaning of health has evolved over time. In keeping with the biomedical perspective, early definitions of health focused on the theme of the body's ability to function; health was seen as a state of normal function that could be disrupted from time to time by disease. An example of such a definition of health is: "a state characterized by anatomic, physiologic, and psychological integrity; ability to perform personally valued family, work, and community roles; ability to deal with physical, biological, psychological, and social stress". Then in 1948, in a radical departure from previous definitions, the World Health Organization (WHO) proposed a definition that aimed higher: linking health to well-being, in terms of "physical, mental, and social well-being, and not merely the absence of disease and infirmity". Although this definition was welcomed by some as being innovative, it was also criticized as being vague, excessively broad and was not construed as measurable. For a long time, it was set aside as an impractical ideal and most discussions of health returned to the practicality of the biomedical model.