Chapter 8: Over-the-Counter Drugs & Natural Health Products

Over-the-Counter Drugs & Natural Health Products comprehensively details the distinctions and regulations governing prescription drugs, over-the-counter (OTC) drugs, and natural health products (NHPs) within the context of Canadian health care. OTC drugs, which are widely used by consumers for self-treatment, are categorized based on the necessary level of professional intervention, ranging from Schedule I (prescription only) to Unscheduled drugs. The process for reclassifying a prescription drug to OTC status requires the ingredient to meet strict criteria related to its safety profile, consumer practicality, and outweighing benefits over risks, with Health Canada reviewing safety and efficacy data before issuing approval. A core concern highlighted is the potential for danger and misuse associated with OTC drugs, including the risk of hepatic toxicity from excessive acetaminophen doses and gastrointestinal or cardiovascular issues from NSAIDs, emphasizing the critical need for careful patient education. The chapter also addresses NHPs—an umbrella term including vitamins, minerals, and herbal remedies—which are regulated under the Natural Health Products Regulations and receive either a Natural Product Number (NPN) or a Drug Identification Number-Homeopathic Medicine (DIN-HM) if licensed. Despite the public perception that "natural" products are inherently safe, they carry risks of adverse effects and significant interactions with conventional medications, such as Ginkgo biloba increasing bleeding risk with anticoagulants. Finally, the content explores the regulatory history and medical uses of cannabis in Canada, noting its psychoactive components like THC and therapeutic compounds like CBD, and integrates the nursing process by stressing the necessity of thorough assessment and patient education regarding all self-administered products to ensure safety.