Nicotine (non-smoked)
Gum, patch, pouches · Nicotinic acetylcholine agonist
What it is
The stimulant alkaloid from tobacco, isolated from smoking's tar and combustion products. Non-smoked forms (gum, patches, pouches) are increasingly used as a focus aid, separate from smoking cessation.
What human evidence shows
Meta-analyses in never-smokers report small-to-moderate short-term effects on attention and working memory. Those studies measure single doses in a lab; none of them measure what happens after months of daily use, which is where the dependence literature takes over. Read the risk section as the more relevant half.
Risks
Highly addictive by mechanism regardless of delivery route — dependence liability is the central cost, and "just gum" dependence is common and persistent. Acute effects: elevated heart rate and blood pressure, nausea at low tolerance. Cardiovascular risk of pure nicotine is far below smoking but not zero (vasoconstriction). Absolutely contraindicated in pregnancy, and adolescent exposure affects brain development.
Legal status
US: legal for adults 21+ (Tobacco 21). Not WADA-banned (monitored program). Age-restricted everywhere.
Evidence base
established literature
Large human evidence base: several phase 3 or 4 trial reports, plus multiple meta-analyses or systematic reviews.
- phase 3/4
- 23
- randomised
- 3,835
- reviews
- 1,310
- human trials
- 4,719
Counts are of published papers, not distinct trials, and measure how much research exists — not whether this works or is safe for you.
Research (12)
- Nicotine delivery and cigarette equivalents from vaping a JUULpodTob Control · 2022
- Molecular mechanisms for nicotine intoxicationNeurochem Int · 2019
- Acute Pediatric Liquid Nicotine IngestionsPediatr Ann · 2023
- Nicotine delivery systemsExpert Opin Drug Deliv · 2005
- Nicotine replacement therapyAnn Pharmacother · 1998
- Rodent models for nicotine withdrawalJ Psychopharmacol · 2021
- Nicotine Replacement Therapy: An OverviewInt J Health Sci (Qassim) · 2016
- Nicotine forms: why and how do they matter in nicotine delivery from electronic cigarettes?Expert Opin Drug Deliv · 2020
- Quick nic: novel smokeless nicotine products and pediatric trendsCurr Opin Pediatr · 2023
- Novel Pathways and Mechanisms of Nicotine-Induced Oral CarcinogenesisRecent Pat Anticancer Drug Discov · 2022
- Synthetic nicotine has arrivedTob Control · 2023
- Nicotine, its metabolism and an overview of its biological effectsToxicon · 2004
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