Nicotine Poisoning Symptoms: How to Recognize Them and What to Do

Nicotine poisoning symptoms usually start with nausea, vomiting, and dizziness, and severe cases bring seizures, a slow heartbeat, or shallow breathing. The symptoms come in two phases, and the first starts within an hour. There is no single safe amount of nicotine, and small amounts hit young children hardest.

Nicotine poisoning can come from e-liquid, patches, and gum, and pets need their own poison line. Call 911 for a seizure, a collapse, or trouble breathing, and Poison Control at 1-800-222-1222 for anything else.

Nicotine Poisoning Symptoms in Two Phases

Emergency guidance from the CDC splits nicotine poisoning, also called nicotine overdose, into two phases: stimulation first, then a slowdown of the heart and breathing. Early symptoms appear within 15 minutes to 1 hour:

Stomach: nausea, vomiting, stomach pain, and extra saliva. Vomiting, the most common symptom, affects more than half of people with symptoms.
Head: headache, dizziness, and loss of balance.
Mood: confusion, agitation, or restlessness.
Heart and skin: a faster heart rate, higher blood pressure, and sweating.

Late symptoms appear 30 minutes to 4 hours after exposure, and some people have only late symptoms:

Heart: a slow or irregular heartbeat with low blood pressure.
Breathing: shallow or stopped.
Nervous system: seizures and, at worst, coma.
Stomach: diarrhea.

If you feel “nic-sick” after more nicotine than usual, that is milder than poisoning: the American Lung Association uses the term for vague symptoms above a person's tolerance. Any severe symptom, any child, or any swallowed e-liquid calls for help right away.

How Much Nicotine Leads to an Overdose?

The amount of nicotine that leads to an overdose depends on who is exposed. CDC emergency response guidance on nicotine warns that relatively small amounts can rapidly be fatal. According to MedlinePlus, from the National Library of Medicine, young children can show symptoms after swallowing 1 to 2 mg.

Total nicotine equals nicotine concentration (mg/mL) times volume (mL). A 2 mL refill at 50 mg/mL contains about 100 mg of nicotine, or 50 to 100 times the amount that can cause symptoms in a young child.

Refills that strong are not rare: e-cig products at 5% nicotine or more made up 81% of US e-cig unit sales in March 2022.

What Causes Nicotine Poisoning?

People get nicotine poisoning by swallowing nicotine, inhaling it, or absorbing it through the skin or eyes. Typical causes by route:

Swallowing: e-liquid, nicotine gum, a patch, or cigarette tobacco.
Inhaling: e-cigs and other vapes. From April 2022 to March 2023, inhalation or nasal contact was the route in 61.0% of e-cig cases reported to US poison centers and swallowing in 40.0%, with some overlap.
Skin and eyes: e-liquid spilled on the skin or splashed in the eye.

America's Poison Centers notes that liquid nicotine products carry a higher nicotine concentration than most other tobacco products, so spilled e-liquid delivers more nicotine than a cigarette would.

Why Small Amounts Matter for Children and Pets

Small amounts of nicotine matter most for children, who are the most vulnerable because of their size. Poison center data show the scale:

In 2024, the latest year published as of the fourth quarter of 2026, US poison centers recorded 8,504 single exposures to nicotine e-cig products, 7,699 (90.5%) of them in children 5 and younger.
An earlier CDC report covering April 2022 to March 2023 found monthly e-cig exposure cases rose 32%, from 476 to 630; 87.8% involved children under 5.

With a child, act before symptoms appear: FDA advice is to call Poison Control right away if anyone drinks e-liquid, even if you are not sure. A pet can show symptoms within about 15 minutes and needs a vet or the Pet Poison Helpline at (855) 764-7661, which charges $99 per incident.

What to Do Right Now, and When to Call 911

Right now, call 911 if the person you are with:

has collapsed or can't be woken up;
has had a seizure;
has trouble breathing or has stopped breathing, in which case start CPR.

For anything else, call Poison Control at 1-800-222-1222. The line is free, confidential, and open 24/7, and the case does not need to be an emergency. Have the age, weight, product, nicotine concentration, amount, and time at hand if you can, but do not delay the call.

Do not make the person vomit unless Poison Control or a health care professional says so. Remove contaminated clothing, then wash the skin with soap and water, or rinse the eyes with water, for at least 15 minutes.

Treatment and How Long Symptoms Last

According to MedlinePlus, hospital treatment may include:

vital-sign checks and activated charcoal;
oxygen or breathing support;
IV fluids and an ECG;
medicines for agitation, a fast heartbeat, seizures, or nausea.

Symptoms usually fade within about 1 to 2 hours after a mild exposure and can last 18 to 24 hours after a severe one. The outlook depends on the amount of nicotine and how quickly treatment starts; long-term effects are uncommon unless complications occur.

Prevention: Storage That Keeps E-Liquid Out of Reach

Prevention covers devices as well as e-liquid: in 2024, poison center records mentioned e-cig devices about 13 times as often as refill e-liquid. The federal child-resistant packaging rule for liquid nicotine containers caps flow at 2 mL per activation but exempts sealed pre-filled pods and disposables.

Keep your nicotine products in their original containers, caps closed, up high and out of sight of children and pets.
Fill devices away from children and wear gloves.
Store flavored e-liquid out of sight; some bottles look like juice boxes or candy.
Fold a used patch in half, sticky sides together, before throwing it away out of reach.

Four Steps to Remember

Seizure, collapse, or trouble breathing: call 911.
A child, a swallowed e-liquid, or any doubt: call Poison Control.
Mild nausea after extra nicotine: Poison Control can advise.
Storage: devices, pods, and patches up high and out of sight.

How We Sourced the Symptom Lists

Our symptom lists, timing, and first steps come from public health sources: MedlinePlus, CDC emergency response guidance, America's Poison Centers reports, and CPSC and American Lung Association guidance. Other health sites only showed us which questions readers ask.

Frequently Asked Questions

Can Vaping Cause Nicotine Poisoning Symptoms?

Yes. Nicotine enters the body when you inhale it, so vaping can cause nicotine poisoning; inhalation was the most common route in e-cig cases reported to US poison centers.

Can Nicotine Poisoning Go Away on Its Own?

Partly. Mild symptoms usually fade within about 1 to 2 hours, and Poison Control can advise for free; any child or swallowed e-liquid needs that call right away. Severe symptoms can last up to a day and call for 911.

Can You Die From Nicotine Poisoning?

Yes, though deaths are rare: in 2024, US poison centers recorded 2 deaths among 8,504 single exposures to nicotine e-cig products.

What Are the First Signs of Nicotine Poisoning in a Child?

Look for vomiting, the most common symptom, plus extra saliva, stomach pain, or restlessness. Call Poison Control on suspicion alone, before any symptom appears.

Is Poison Control Only for Emergencies?

No. Poison Control takes non-emergency calls for free, and webPOISONCONTROL, an online tool from the National Capital Poison Center, is an alternative.

Can Touching E-Liquid Cause Nicotine Poisoning?

Yes. Nicotine is absorbed through the skin and eyes, so e-liquid spilled on the hands can cause nicotine poisoning; wash it off right away.

Where Else Is Nicotine Found?

MedlinePlus lists chewing tobacco, pipe tobacco, nicotine gum, inhalers, and patches, plus some insecticides and tobacco leaves. Store gum and patches as safely as e-liquid.