The main signs of cannabis poisoning in kids are sleepiness that is hard to wake from, unsteady walking, vomiting, and fast or shallow breathing. Symptoms often start 30 minutes to 2 hours after a child eats a THC edible, and they can last 12 hours or longer. A child who cannot be woken, breathes fast, or has a seizure needs emergency care.
signs of cannabis poisoning in kids
Which signs show up first?
Young kids almost never smoke cannabis. They eat it. A gummy or chocolate bar tastes like a treat, so a toddler may eat several pieces before an adult notices.
How Long After Eating Cannabis Do Symptoms in Child Appear?
Early signs to watch for include:
how to prevent kids from eating cannabis edibles
- Sleepiness or trouble staying awake
- Unsteady walking, stumbling, or trouble sitting up
- Vomiting or stomach pain
- A fast heartbeat
- Dizziness or confusion
- Red, glassy eyes
- Crying or laughing with no clear cause
Some children show no early signs and go straight to heavy sedation. Watch the clock, not just the symptoms.
Which signs mean call 911?
Some reactions need emergency help instead of a wait-and-see approach.
- Trouble breathing, or slow shallow breaths
- Cannot be woken up, or responds only to pain
- Seizure or body jerking
- Blue lips or pale skin
- Repeated vomiting with no fluids staying down
- Severe agitation, panic, or hallucinations
Call 911 or Poison Control at 1-800-222-1222 if you see any of these. Poison Control answers around the clock and gives free advice.
Why do convenient cannabis products raise the risk?
Cannabis has become a convenience product. It arrives by delivery, comes in candy form, and fits in a purse pocket. That ease has a cost in homes with small children.
Edibles drive a large share of young children's cannabis exposures in states with legal retail sales. They look like snacks, the bags often reseal with a light press, and one piece can carry an adult dose.
Convenience features that add risk:
- Gummies and chocolates that copy the look of popular candy
- Resealable pouches a child can open
- Vape pens and cartridges left in bags, cars, or on counters
- Delivery orders that arrive without a locked outer container
- Drinks and syrups that look like soda or juice
Are edibles worse than smoked cannabis for a young child?
In most cases, yes. A child who eats an edible takes in a full dose at once, and the liver converts THC into a stronger compound. Smoke exposure tends to be smaller and shorter.
How much cannabis is too much for a child?
There is no safe THC dose for a young child. Emergency visits have been reported after a child ate one piece of an edible, and a single adult serving can be far more than a small body can process.
Body weight matters more than the number on the label. A 10 mg gummy is a mild dose for an adult and a large one for a toddler.
Which kids face the highest risk?
Toddlers between 1 and 3 years old make up most accidental cannabis exposures. They crawl, climb, and put things in their mouths, and they cannot tell an adult what they ate.
Children with a heart condition, asthma, or a seizure disorder face a higher chance of serious symptoms. Kids who take sedatives or other medicines that slow breathing face a higher risk too.
What should you do if you think a child ate cannabis?
- Move the child away from the product and keep the package.
- Check breathing and responsiveness.
- Call Poison Control at 1-800-222-1222, or 911 for severe symptoms.
- Do not make the child vomit.
- Stay with the child and note the time of exposure.
- Bring the package or a photo of it to the emergency room.
Tell the medical team what the child ate and when. Poison center staff focus on treatment, and their job is to keep the child safe.
How long do symptoms last?
Most children improve within 6 to 12 hours, though some stay drowsy for a day or more. Symptoms can come in waves as the body digests more of the edible. A child who looks stable at home still needs a call to Poison Control for a check.
How do you store cannabis around kids?
- Lock it in a hard case, not a drawer or a high shelf.
- Keep it in the original child-resistant package.
- Store it out of sight and out of reach.
- Never leave a vape pen, joint, or edible in a purse, backpack, or cup holder.
- Keep edibles away from the kitchen snack shelf.
- Ask guests to lock their cannabis in a car or bag.
A locked box costs less than an ER visit, and it keeps a curious child out.
Frequently asked questions
Can a child die from cannabis?
Deaths are rare and often tied to other causes, such as a fall while the child is unsteady or a breathing problem. Case reports exist, so heavy sedation should always be treated as an emergency.
Does CBD oil poison kids?
CBD with no THC carries less risk of a high than a THC edible, but labels are not always accurate. Tests have found THC in products sold as THC-free. Treat any symptoms after CBD the same way you would treat a THC edible.
Will a child test positive for weeks?
THC can show up in a child's urine for days after one exposure, and sometimes longer. A positive test alone does not prove poisoning. Doctors treat symptoms, not the test result.
Bottom line
Convenience made cannabis easier to buy, easier to carry, and easier to forget on a coffee table. A locked container and child-resistant packaging are the two steps that cut the risk the most.