Nicotine spray safety and side effects
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Nicotine Spray Safety: General Findings
Nicotine sprays, including both nasal and mouth sprays, are generally considered safe for use as smoking cessation aids, with most side effects being mild to moderate and short-lived 1234+4 MORE. Studies consistently show that these sprays are effective in helping people quit smoking, and serious adverse effects are rare 3789.
Common Side Effects of Nicotine Nasal Spray
Nasal and Throat Irritation
The most frequently reported side effects of nicotine nasal spray are local irritant symptoms such as runny nose, nasal irritation, throat irritation, sneezing, and watering eyes. These symptoms are most pronounced during the first few days of use but tend to decrease significantly within the first week 1236+2 MORE.
Other Reported Effects
Other possible side effects include nasal congestion, changes in sense of smell and taste, dry mouth, and insomnia. Rarely, users may experience shakiness, allergic reactions (such as skin rashes or hives), or, in very rare cases, seizures (about 1 in 1,000 users) .
Safety in Special Populations
People with chronic rhinitis can use nicotine nasal spray without significant worsening of their nasal condition, and clinical examinations have not shown any long-term nasal damage . However, the spray should not be used by pregnant or nursing women, or by people with certain medical conditions such as heart disease, a history of seizures, or those taking specific medications like MAO inhibitors .
Common Side Effects of Nicotine Mouth Spray
Local Oral Symptoms
Nicotine mouth spray is also associated with a high rate of local side effects, mainly burning sensations in the tongue or throat, nausea, and hiccups. These effects are most common at the start of treatment and are usually mild to moderate in severity 457.
General Tolerability
Most adverse events with the mouth spray are mild or moderate, and the overall safety profile is similar to that of other nicotine replacement therapies. Withdrawal due to side effects is relatively uncommon, and no serious adverse effects have been reported in large studies 457.
Comparison to Other Nicotine Replacement Therapies
Both nasal and mouth sprays deliver nicotine more rapidly than gum or patches, which can help relieve cravings more quickly. While sprays are associated with more local irritation than other forms, they are generally well tolerated and provide an effective alternative for those who cannot use other nicotine replacement products 3457+2 MORE.
Conclusion
Nicotine sprays are effective and generally safe options for smoking cessation. The most common side effects are local irritation in the nose or mouth, which usually decrease with continued use. Serious side effects are rare, and most users tolerate the sprays well. People with certain health conditions or who are pregnant or nursing should consult a healthcare provider before using nicotine sprays.
Sources and full results
Most relevant research papers on this topic
Evaluation of side effects after nicotine nasal spray in patients with chronic rhinitis.
Nicotine nasal spray is a short-term safe aid in smoking cessation for patients with chronic rhinitis, with irritant nasal side effects occurring most often in the early stages of treatment.
Efficacy of a nicotine mouth spray in smoking cessation: a randomised, double-blind trial
Nicotine mouth spray significantly increases smoking cessation rates compared to placebo, with higher abstinence rates over 6-, 24-, and 52-week periods.
Efficacy and safety of a nicotine mouth spray for smoking cessation; a randomized, multicenter, controlled study in a naturalistic setting.
Nicotine mouth spray is an effective and safe smoking cessation option for motivated smokers, even in a naturalistic setting without behavioral support.
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Effect of nicotine nasal spray on smoking cessation. A randomized, placebo-controlled, double-blind study.
Nicotine nasal spray, combined with group treatment, is an effective aid to smoking cessation, with higher success rates for those with high nicotine tolerance.
Efficacy of a nicotine nasal spray in smoking cessation: a placebo-controlled, double-blind trial.
Nicotine nasal spray is a safe, effective, and viable alternative treatment for smoking cessation, with success rates significantly enhanced compared to placebo.
Effect of nicotine mouth spray on urges to vape: A randomized, placebo‐controlled, pharmacodynamic clinical trial in exclusive e‐cigarette users
Nicotine mouth spray significantly reduces urges to vape in regular e-cigarette users, providing fast relief up to 2 hours after dosing, and is well-tolerated and safe.
Does nicotine do what we think it does? A meta-analytic review of the subjective effects of nicotine in nasal spray and intravenous studies with smokers and nonsmokers.
Nicotine increases vigor for smokers but increases fatigue for never-smokers, increases head rush for both, and increases drug high and liking in smokers, while decreasing relaxation and increasing tension/jitteriness in both groups.
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