Side effects of nicotine

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Side Effects of Nicotine: A Comprehensive Overview

Cardiovascular Side Effects of Nicotine

Nicotine consumption, whether through smoking, vaping, or nicotine replacement therapy (NRT), has been associated with several cardiovascular side effects. Studies have shown that nicotine can lead to increased heart palpitations and chest pains, with an odds ratio (OR) of 2.06, indicating a significant risk increase compared to controls . Additionally, nicotine has been found to elevate cardiovascular activity, particularly within the first few hours after administration, which is a concern for both smokers and nonsmokers .

Gastrointestinal and Respiratory Side Effects

Nicotine use is also linked to various gastrointestinal issues, including nausea, vomiting, and general gastrointestinal complaints (OR 1.67 and OR 1.54, respectively) . Respiratory side effects such as coughing and mouth and throat soreness are particularly prevalent with orally administered NRT, with coughing having an OR of 2.89 . Furthermore, nicotine ingestion can cause oral irritation and pain, mediated by the activation of neuronal nicotinic acetylcholine receptors .

Neurological and Psychological Side Effects

Nicotine has complex effects on the brain and mood. While it can enhance certain cognitive functions like attention and memory , it also has adverse effects such as increased tension and jitteriness, particularly in never-smokers . Nicotine overdose events (NODEs), characterized by symptoms like nausea, lightheadedness, and general malaise, are common in individuals not accustomed to nicotine, especially with fast blood-rise nicotine patches . Additionally, nicotine can lead to neuroendocrine changes, including hypersecretion of stress hormones like ACTH and corticosterone, which may contribute to behavioral changes and withdrawal symptoms .

Skin and Oral Side Effects

The use of nicotine patches is associated with skin irritations, with an OR of 2.80, indicating a significant risk . Orally administered nicotine products can cause mouth ulcers and hiccoughs, with the latter having a notably high OR of 7.68 . These side effects highlight the importance of monitoring and managing the method of nicotine delivery to minimize discomfort.

Immune and Reproductive Health

Nicotine poses several health hazards beyond the immediate side effects. It can decrease immune response and negatively impact reproductive health. Studies suggest that nicotine affects cell proliferation, oxidative stress, and DNA mutation, which can lead to cancer and resistance to chemotherapy and radiotherapy . The inhibitory effects of nicotine on hormones like prolactin and LH may also contribute to reduced fertility in heavy smokers .

Conclusion

Nicotine, while effective for smoking cessation and cognitive enhancement, comes with a range of side effects that affect multiple organ systems. These include cardiovascular, gastrointestinal, respiratory, neurological, and dermatological issues. Understanding these side effects is crucial for clinicians and patients to make informed decisions about nicotine use and to manage its adverse effects effectively.

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Most relevant research papers on this topic

Adverse events associated with nicotine replacement therapy (NRT) for smoking cessation. A systematic review and meta-analysis of one hundred and twenty studies involving 177,390 individuals

Nicotine replacement therapy (NRT) is associated with a variety of side effects, including heart palpitations, nausea, vomiting, gastrointestinal complaints, and insomnia.

Meta-AnalysisRigorous Journal

2010·

156citations

·E. Mills et al.

Tobacco Induced Diseases·

DOI

Sensory effects of nicotine and tobacco.

Nicotine elicits oral irritation, pain, and a bitter taste, increasing pain threshold and tolerance levels, with mixed results in oral self-administration.

Literature Review

2021·

46citations

·E. Carstens E et al.

Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco·

DOI

Nicotine and Tobacco

Nicotine and tobacco use are associated with various medical conditions, and interventions like nicotine replacement and electronic cigarettes may help smokers quit or reduce their smoking.

Literature Review

2020·

0citations

·S. Nahvi et al.

ASAM Handbook of Addiction Medicine·

DOI

Overdose symptoms and positive affect in never-established smokers are moderated by nicotine patch type: A between-subjects experimental investigation

Slow-rise nicotine patches may be more appropriate for never-smokers, as they are less likely to cause nicotine overdose symptoms and decrease positive affect.

Rigorous Journal

2022·

0citations

·D. Gilbert et al.

F1000Research·

DOI

Harmful effects of nicotine

Nicotine consumption increases the risk of cardiovascular, respiratory, gastrointestinal disorders, decreased immune response, and cancer, requiring regulation and supervision by trained medical personnel.

Systematic Review

2015·

353citations

·A. Mishra et al.

Indian Journal of Medical and Paediatric Oncology : Official Journal of Indian Society of Medical & Paediatric Oncology·

DOI

Effects of transdermal nicotine on symptoms, moods, and cardiovascular activity in the everyday lives of smokers and nonsmokers with attention-deficit/hyperactivity disorder.

Nicotine patches can reduce ADHD symptoms and improve mood in adults, regardless of smoking status, and increase cardiovascular activity for 3 to 6 hours after administration.

RCT

2009·

50citations

·Jean-G. Gehricke et al.

Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors·

DOI

Neuroendocrine actions of nicotine and of exposure to cigarette smoke: medical implications.

Nicotine and cigarette smoke exposure cause neuroendocrine changes, potentially leading to reduced fertility, disrupted immune responsiveness, and behavioral consequences in smokers.

1989·

154citations

·K. Fuxe et al.

Psychoneuroendocrinology·

DOI

Meta-analysis of the acute effects of nicotine and smoking on human performance

Nicotine and smoking significantly enhance motor abilities, attention, and memory, potentially contributing to the initiation and maintenance of tobacco dependence.

Meta-AnalysisRigorous Journal

2010·

625citations

·S. Heishman et al.

Psychopharmacology·

DOI

The Effects of Tobacco Smoke and Nicotine on Cognition and the Brain

Tobacco smoke and nicotine both negatively impact cognitive function, with nicotine potentially harming neurodevelopment in children and contributing to Alzheimer's disease.

Literature Review

2007·

571citations

·G. Swan et al.

Neuropsychology Review·

DOI

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.

Meta-Analysis

2005·

76citations

·D. Kalman et al.

Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco·

DOI

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