Introduction
Nicotine replacement therapy (NRT) refers to the use of medications containing nicotine to aid smoking cessation and relief from nicotine withdrawal symptoms. It is used as a harm reduction strategy which aims to help people quit smoking tobacco products and prevent relapse by partially replacing nicotine from cigarettes or other smoked tobaccos with a form of nicotine from medication. As tobacco smoking poses major risk to human health globally, nicotine replacement therapy has gained significant momentum across various countries in facilitating smoking cessation at a large scale.
Forms of NRT Products Available Worldwide
There are several products containing nicotine that are approved and available as Nicotine Replacement Therapy Market worldwide to help people quit smoking. Some of the major forms include:
Nicotine Gum: Nicotine gum containing 2mg or 4mg nicotine per piece of gum is one of the oldest and most commonly used forms of NRT. The user is instructed to "chew and park" the gum to release nicotine which is absorbed through the lining of the mouth. Popular nicotine gum brands includes Nicorette, Nicabate, etc.
Nicotine Patch: Adhesive nicotine patches that release nicotine through the skin over 16-24 hours are also very popular. Common dosage levels include 7mg, 14mg, 21mg patches depending on the severity of nicotine addiction. Popular patch brands are Nicoderm CQ, Habitrol, etc.
Nicotine Lozenge: Nicotine lozenges or mini lozenges containing 2mg or 4mg nicotine are another fast acting form that dissolves slowly in the mouth to release nicotine. Examples include Nicorette lozenges.
Nicotine Inhaler: The nicotine inhaler mimics the hand-to-mouth motion of smoking by releasing a nicotine vapor when inhaled. Brands like Nicotrol inhaler are available.
Nicotine Nasal Spray: A novel method is the nicotine nasal spray which rapidly delivers nicotine into the bloodstream through nasal passages. Products like Nicotrol NS nasal spray are gaining momentum.
Widespread Global Adoption of NRT
These nicotine replacement products are now available across most parts of the world with varying degrees of popularity in different regions. In North America as well as Western Europe where the smoking population is significantly higher, nicotine gums and patches have been traditionally used as the most common forms of NRT for decades now. However, novel modes of nicotine delivery like lozenges, inhalers and nasal sprays are also gaining ground fast in these mature markets.
In Asia Pacific regions with huge smoking population like China, Japan, parts of Southeast Asia, gums and patches are the most widely available. However, their usage and awareness as effective smoking cessation aids is still growing. Public health campaigns promoting NRT as less harmful alternative to smoking are helping popularize these products slowly. Countries like Australia and New Zealand have led the adoption and better compliance rates due to proactive public health strategies
Regulations Around NRT Sales and Usage
Most countries have some form of regulations governing the sale and usage of nicotine replacement products as smoking cessation aids. While sales via pharmacies requiring prescription are common in many developed nations, over-the-counter sales are also permitted in several countries for gums and patches.
For example, in the USA all NRT products except nasal spray are available over-the-counter for adults aged 18 and above for quitting smoking. In UK also gums and patches can be directly brought from shops without prescription. On the other hand, in many Asian and South American countries, nicotine gums and patches still require a doctor's prescription.
Nicotine nasal sprays and inhalers considered riskier often need medical supervision and are available only via prescriptions even in the West. Regulation of NRT advertising also varies, with some restrictions on promotions imposed in many regions. Thus regulations strive to ensure the proper, intended usage of these products for quitting smoking alone.
Effectiveness and Best Practices
Several clinical studies have demonstrated the effectiveness of nicotine gums, patches and other replacement products in facilitating smoking abstinence when used along approved guidelines. On an average, NRT nearly doubles the smoking quit rates compared to quitting cold turkey without any support. The combination of two forms like patch plus gum is even more beneficial.
For best results, experts recommend using NRT for at least 3 months or longer duration. While single product may work for some, multiple products usage sequentially or together is more successful for heavy smokers. Set quit date, use in smoking allowed areas, slow process are important practices to get full benefits. Despite high relapse rates commonly seen, continued attempts with NRT improve long term quit success rates significantly at the population level.
With its proven efficacy and widespread availability in different regions, nicotine replacement therapy has emerged as a crucial harm reduction approach in supporting the global objective of tobacco control. However, continual education about the proper and prescribed use of these products combined with behavior change support remains important to maximize benefits and minimize misuse risks of NRT. Focus on novel delivery forms, multiple product regimes along with digital interventions hold promise to further boost smoking quit rates on a larger population level using nicotine replacement therapy.
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