anorectic

Anorectic, also spelled anorexigenic in some contexts, is an adjective and noun in medical terminology. As an adjective, it describes agents or effects that suppress appetite or reduce food intake. As a noun, it refers to an appetite-suppressing agent or drug. The term is often used in pharmacology and nutritional medicine, particularly in discussions of obesity treatment. It is distinct from anorexia nervosa, though related in concept via appetite and intake issues.

Pharmacology: Anorectics include various drugs with stimulant or other mechanisms. Historically, stimulant-based appetite suppressants such as phentermine, diethylpropion, benzphetamine were used, especially in the 1950s–1990s. Later agents included serotonergic and sympathomimetic drugs; several were withdrawn due to safety concerns, notably an association with heart disease, valve abnormalities, or cancer risk (e.g., fenfluramine/dexfenfluramine; newer agents are subject to tight regulation). Some current prescriptions include newer agents that suppress appetite through different pathways, and non-stimulant medications or peptide-based therapies are under study.

Clinical use and safety: Anorectics are intended for short-term weight management as part of a comprehensive program of diet and exercise. They are typically prescribed for adults with obesity or overweight with related risk factors. Use requires medical supervision due to potential side effects such as hypertension, tachycardia, insomnia, anxiety, and risk of abuse or withdrawal. They are generally contraindicated in individuals with cardiovascular disease, certain psychiatric conditions, pregnancy, or anorexia nervosa or other conditions that require careful weight management.

History and regulation: The term has been in pharmacology since the mid-20th century. Regulatory status varies by country; many anorectics are prescription-only medications with strict limits on duration of use and monitoring. Ongoing research seeks safer, longer-acting agents and alternatives that modulate appetite with fewer adverse effects.