Why in News?
Nicotine is recently a major focus in public health news, particularly in India, due to new regulatory proposals aimed at tightening access to Nicotine Replacement Therapy (NRT) and a growing global scientific consensus on its direct cardiovascular toxicity.
What is Nicotine?
- Alkaloid Source: A naturally occurring stimulant found in the nightshade family of plants, primarily tobacco (Nicotiana tabacum).
- Defence Mechanism: In nature, plants produce nicotine as an insecticide to kill or deter herbivores.
- Psychoactive Agent: It is the primary addictive substance in cigarettes, vapes, and cigars, acting as both a stimulant and a sedative.
Key Information
- India’s New OTC Restrictions: India's top drug advisory body, the Drug Technical Advisory Board (DTAB), has recommended restricting over-the-counter (OTC) access to most NRT products.
- Proposed Rule: Only unflavoured 2 mg nicotine gum will remain available without a prescription.
- Impact: Access to flavoured gums and all nicotine lozenges (including 2 mg) will require a license/prescription, a move experts fear will create hurdles for those trying to quit smoking.
- New Evidence on Heart Health: Recent expert consensus papers have identified nicotine itself—independent of tobacco smoke—as a potent cardiovascular toxin. It is now officially recognized as a direct cause of arterial stiffness and endothelial dysfunction.
- Odisha's Total Ban: The state of Odisha has recently enforced a statewide ban on all tobacco and nicotine-containing products (including gutkha and nicotine-based pan masala) following Supreme Court directives.
- "Tobacco-Free Generation" Global Movement: International campaigns for World No Tobacco Day 2026 are focusing on "Unmasking the Appeal," targeting the industry's use of synthetic nicotine and nicotine salts to hook youth.
Health Impacts & Facts
- Extreme Addictiveness: It triggers the release of dopamine in the brain's reward circuit, creating a cycle of dependence comparable to heroin or cocaine.
- Cardiovascular Risks:
- Increases heart rate and blood pressure.
- Causes systemic vasoconstriction (narrowing of blood vessels).
- Promotes atherosclerosis (hardening of the arteries).
- Adolescent Brain Development: Exposure before age 25 can permanently harm parts of the brain responsible for attention, learning, and impulse control.
- Reproductive Health: Nicotine is a known teratogen; exposure during pregnancy can lead to low birth weight, stillbirth, and impaired lung development in the fetus.
- Cancer Myth: While nicotine itself is not classified as a carcinogen, it can promote tumour growth and is often delivered alongside 69+ known cancer-causing chemicals in tobacco smoke.
Nicotine Replacement Therapy (NRT)
- Forms: Includes gums, patches, lozenges, nasal sprays, and inhalers.
- Purpose: Delivers low, controlled doses of nicotine to manage withdrawal symptoms without the toxic tar and gases found in smoke.
- Success Rates: Using NRT can increase the chances of successfully quitting smoking by 50–60%.
- New Developments: A new drug, cytisinicline, is expected to receive FDA approval in mid-2026 as the first new smoking cessation pill in nearly 20 years.
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