Which of the following is classified as a drug according to health standards?

A substance recognized in official pharmacopoeias is classified as a drug according to health standards because pharmacopoeias provide detailed information about the quality, purity, strength, and consistency of these substances. Drugs are typically characterized by their capacity to diagnose, treat, cure, or prevent disease, or to affect the structure or function of the body. Official pharmacopoeias include listings of substances that meet specific regulatory standards and are intended for use in medical treatment or pharmaceutical applications.

In contrast, substances intended for food consumption do not fall under the same classification as drugs, as they are regulated differently and primarily serve nutritional purposes rather than therapeutic ones. Devices used for treatment pertain to medical devices rather than drugs, as they do not involve chemical substances that exert a pharmacological effect. Cosmetic products, which are designed to enhance or alter the appearance of the body without affecting its structure or functions, are also distinct from drugs and are subject to separate regulations.