Mapacho / strong tobacco
Nicotiana rusticaSolanaceae // leaves
Also known as: mapacho, Aztec tobacco
Preparation
Overview
Plant parts
leaves
Known constituents
nicotine, nornicotine
Research corpus coverage
Chemistry notes
- Principal reported constituents include nicotine, nornicotine; broad class: nicotinic acetylcholine receptor agonists.
Uses & Evidence
Traditional / historical use
Documented traditional use — not a claim of established efficacy.
No traditional-use records in this corpus.
Modern evidence
Often confused with N. tabacum; nicotine content can be much higher and preparations vary.
MODERATE · “Tobacco Is the Chief Medicinal Plant in My Work”: Therapeutic Uses of Tobacco in Peruvian Amazonian Medicine Exemplified by the Work of a Maestro Tabaquero
Identity/attribution caution.
Safety
Human
- Critical
Safety severity is CRITICAL: acute nicotine poisoning can cause vomiting, hypertension, seizures, respiratory failure and death; dependence risk
Intrinsic toxicity · HIGH · “Tobacco Is the Chief Medicinal Plant in My Work”: Therapeutic Uses of Tobacco in Peruvian Amazonian Medicine Exemplified by the Work of a Maestro Tabaquero
Cats
- High risk
The page’s general toxicity-to-pets text describes tobacco (Nicotiana) poisoning as causing initial low heart and respiratory rates, followed by overstimulation, uncontrolled urination or defecation, tremors, seizures, paralysis, and death; it does not separately assign a toxicity designation to cats.
Intrinsic toxicity · UNKNOWN · Tobacco and related nicotine-containing products; no preparation-specific distinction provided · MODERATE · poison_control_database · Tobacco Is Toxic To Dogs | Pet Poison Helpline®
- Caution
Nicotine ingestion may cause acute toxicosis in cats, but the page states that no established toxic threshold exists for cats.
Intrinsic toxicity · OTHER · nicotine or nicotine-containing tobacco products · HIGH · poison_control_database · Nicotine & Tobacco | American College of Veterinary Pharmacists
- Caution
Environmental tobacco smoke exposure was associated with increased risk of malignant lymphoma in pet cats.
Route-specific · INHALATION · Environmental tobacco smoke · MODERATE · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
Dogs
- High risk
Nicotine ingestion can cause clinically important acute toxicosis in dogs; the page states that a dose of 9–12 mg/kg is considered lethal.
Intrinsic toxicity · OTHER · nicotine or nicotine-containing tobacco products · HIGH · poison_control_database · Nicotine & Tobacco | American College of Veterinary Pharmacists
- High risk
A dog died from nicotine poisoning after eating an electronic cigarette capsule.
Intrinsic toxicity · OTHER · Electronic cigarette capsule · HIGH · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
- High risk
Nicotine ingestion is dangerous in dogs.
Intrinsic toxicity · OTHER · Nicotine-containing tobacco product; specific preparation not stated · HIGH · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
- High risk
The page states that tobacco (Nicotiana) is toxic to dogs. Nicotine and other pyridine and piperidine alkaloids may cause initial bradycardia and respiratory depression, followed by overstimulation, uncontrolled urination or defecation, tremors, seizures, paralysis, and death.
Intrinsic toxicity · UNKNOWN · Tobacco and related nicotine-containing products; no preparation-specific distinction provided · HIGH · poison_control_database · Tobacco Is Toxic To Dogs | Pet Poison Helpline®
- Caution
Exposure to environmental tobacco smoke was associated with cancer of the nasal cavity and paranasal sinuses in pet dogs.
Route-specific · INHALATION · Environmental tobacco smoke · MODERATE · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
- Caution
Passive exposure to environmental cigarette smoke was associated with airway limitation in dogs with chronic cough.
Route-specific · INHALATION · Environmental cigarette smoke · MODERATE · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
Cats & dogs
- High risk
Ingestion of tobacco-derived nicotine in e-liquid or other nicotine-containing products can cause rapid, potentially severe nicotine poisoning in companion animals; severe cases may result in coma, cyanosis, or death.
Intrinsic toxicity · OTHER · E-liquid, pre-filled cartridges, bulk refill bottles, cigarettes, cigars, nicotine patches, or nicotine gum · MODERATE · veterinary_hospital_guidance · E-cigarettes and Pet Safety | VCA Animal Hospitals
- High risk
Ingestion of nicotine-containing tobacco products, including chewing tobacco, cigarettes, cigars, bidis, nicotine-replacement products, and cigarette butts, may be toxic to cats and dogs.
Intrinsic toxicity · OTHER · tobacco products and nicotine preparations · HIGH · poison_control_database · Nicotine & Tobacco | American College of Veterinary Pharmacists
Additional safety notes (general, unstructured)
Free-text safety notes carried from their source — not broken out by species, route, or hazard type, and not equivalent to the structured records above. Each note names the kind of source it came from.
Safety severity is CRITICAL: acute nicotine poisoning can cause vomiting, hypertension, seizures, respiratory failure and death; dependence risk
HIGH · “Tobacco Is the Chief Medicinal Plant in My Work”: Therapeutic Uses of Tobacco in Peruvian Amazonian Medicine Exemplified by the Work of a Maestro Tabaquero
Ingestion of tobacco-derived nicotine in e-liquid or other nicotine-containing products can cause rapid, potentially severe nicotine poisoning in companion animals; severe cases may result in coma, cyanosis, or death.
MODERATE · veterinary_hospital_guidance · E-cigarettes and Pet Safety | VCA Animal Hospitals
The page refers to tobacco-derived nicotine but does not identify the botanical tobacco species; applicability to Nicotiana rustica is therefore not species-specific.
Ingestion of nicotine-containing tobacco products, including chewing tobacco, cigarettes, cigars, bidis, nicotine-replacement products, and cigarette butts, may be toxic to cats and dogs.
HIGH · poison_control_database · Nicotine & Tobacco | American College of Veterinary Pharmacists
The page discusses tobacco and nicotine products generally and does not identify Nicotiana rustica botanically or distinguish it from Nicotiana tabacum.
Nicotine ingestion may cause acute toxicosis in cats, but the page states that no established toxic threshold exists for cats.
HIGH · poison_control_database · Nicotine & Tobacco | American College of Veterinary Pharmacists
The page provides no cat-specific dose or threshold and does not botanically distinguish Nicotiana rustica from other tobacco sources.
Environmental tobacco smoke exposure was associated with increased risk of malignant lymphoma in pet cats.
MODERATE · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
The page names tobacco/environmental tobacco smoke but does not identify the tobacco species; this claim is mapped provisionally to strong tobacco.
The page’s general toxicity-to-pets text describes tobacco (Nicotiana) poisoning as causing initial low heart and respiratory rates, followed by overstimulation, uncontrolled urination or defecation, tremors, seizures, paralysis, and death; it does not separately assign a toxicity designation to cats.
MODERATE · poison_control_database · Tobacco Is Toxic To Dogs | Pet Poison Helpline®
The clinical signs are presented in general pet text rather than separately attributed to cats; the page discusses Nicotiana generally and does not provide species-specific evidence for Nicotiana rustica.
Nicotine ingestion can cause clinically important acute toxicosis in dogs; the page states that a dose of 9–12 mg/kg is considered lethal.
HIGH · poison_control_database · Nicotine & Tobacco | American College of Veterinary Pharmacists
The dose information concerns nicotine generally, not a botanically identified Nicotiana rustica product.
A dog died from nicotine poisoning after eating an electronic cigarette capsule.
HIGH · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
The capsule was identified as causing nicotine poisoning, but the page does not identify the tobacco species or capsule composition beyond nicotine.
Exposure to environmental tobacco smoke was associated with cancer of the nasal cavity and paranasal sinuses in pet dogs.
MODERATE · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
The page names tobacco/environmental tobacco smoke but does not identify the tobacco species; this claim is mapped provisionally to strong tobacco.
Nicotine ingestion is dangerous in dogs.
HIGH · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
The page names nicotine rather than a specific tobacco species or product.
Passive exposure to environmental cigarette smoke was associated with airway limitation in dogs with chronic cough.
MODERATE · regulatory_guidance · Be Smoke-free and Help Your Pets Live Longer, Healthier ...
The page names tobacco/environmental cigarette smoke but does not identify the tobacco species; this claim is mapped provisionally to strong tobacco.
The page states that tobacco (Nicotiana) is toxic to dogs. Nicotine and other pyridine and piperidine alkaloids may cause initial bradycardia and respiratory depression, followed by overstimulation, uncontrolled urination or defecation, tremors, seizures, paralysis, and death.
HIGH · poison_control_database · Tobacco Is Toxic To Dogs | Pet Poison Helpline®
The page discusses Nicotiana generally and does not provide species-specific evidence for Nicotiana rustica.
Preparation × species risk matrix
Unknown means insufficient evidence was located — not that a form is safe.
Cats
- whole herbHigh risk
- smoke/combustionCaution
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- tea/infusionUnknown
Dogs
- concentrated extractHigh risk
- whole herbHigh risk
- smoke/combustionCaution
- tinctureCaution
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- tea/infusionUnknown
Identity
- Synonym
GBIF lists Nicotia rustica (L.) Opiz as a taxonomic synonym of Nicotiana rustica.
HIGH · GBIF Species Synonyms API
Common name
mapacho, Aztec tobacco
Traditions
Amazonian specialists and diverse Indigenous American traditions
Amazonia and the Americas // pre-Columbian history and living traditions // living tradition
Ethnobotanical
Mapacho / strong tobacco is documented in Amazonian specialists and diverse Indigenous American traditions in Amazonia and the Americas for healing, protection, diagnosis, offerings and social ritual.
HIGH · “Tobacco Is the Chief Medicinal Plant in My Work”: Therapeutic Uses of Tobacco in Peruvian Amazonian Medicine Exemplified by the Work of a Maestro Tabaquero
Ritual
Documented functions include healing, protective, spirit-contact, social; these functions are tradition-specific and should not be generalized across cultures.
HIGH · “Tobacco Is the Chief Medicinal Plant in My Work”: Therapeutic Uses of Tobacco in Peruvian Amazonian Medicine Exemplified by the Work of a Maestro Tabaquero
Legal
Legal status changes over time and by jurisdiction — this is a dated snapshot, not current law.
International · Checked 2026-08-09
Varies substantially by country; constituent controls and plant-specific controls are not uniform.
State / municipal · Checked 2026-08-09
Material state and municipal variation may apply; verify jurisdiction at time of use.
US Federal · Checked 2026-08-09
Legal adult tobacco rules apply; not CSA-scheduled, but sale, import and use are heavily regulated.
Sources
Research records are source-linked but may not yet be editorially reviewed.
regulatory_guidance
peer-reviewed article
poison_control_database
poison_control_database
veterinary_hospital_guidance
government/regulatory source
- GBIF Species Synonyms API1 claim
authoritative taxonomic database