Cannabis Poisoning in Children: Treatment and First Steps

Call Poison Control first, then decide about the ER

In the US, dial 1-800-222-1222. It is free, staffed around the clock, and the people who answer deal with this every day. Before you call, grab your child's weight, the product name, the THC content per piece, and your best guess at how many pieces are missing from the package. Poison Control will tell you whether your child can be watched at home or needs to be seen in person.

Most young children who eat a THC edible recover fully with monitoring. The cases that go badly are usually the ones where nobody noticed for a few hours, or where breathing and alertness were not checked. So the call comes first, before you start guessing.

Why small bodies react harder

Weight changes everything. A 10 mg gummy that gives an adult a mild buzz can be a substantial dose for a 25 pound toddler. Kids also tend to get more sedation, more vomiting, and more agitation than adults do at the same milligram amount. Their livers handle THC differently too, which is part of why edibles hit harder and last longer in children than inhaled cannabis does.

Symptoms arrive on a curve

Smoked or vaped cannabis can show up in 30 minutes to 2 hours. Edibles are slower, often 1 to 4 hours, because the THC has to move through the stomach and liver first. Symptoms peak somewhere in the 2 to 4 hour window and can linger 6 to 12 hours, sometimes longer with edibles.

cannabis poisoning in children treatment

What I watch for:

Sleepiness that goes past normal naptime, or a child who is hard to wake
Unsteady walking, wobbling, or sudden clumsiness in a kid who was steady an hour ago
Vomiting, sometimes repeated
Fast heartbeat, flushed skin, dilated pupils
Confusion, giggling that does not fit the situation, or the opposite: crying, panic, agitation
Slurred speech in a child old enough to talk
In serious cases, seizures, slow or shallow breathing, or unresponsiveness

What hospital treatment actually involves

There is no antidote for THC. Naloxone does not help, because this is not an opioid. Treatment is supportive: continuous monitoring of heart rate, breathing, and oxygen levels, IV fluids if vomiting causes dehydration, oxygen if breathing slows, and benzodiazepines if a child has a seizure or becomes severely agitated. In rare severe cases, a child needs a breathing tube for airway protection until the drug wears off.

Activated charcoal is sometimes given in the emergency department within a certain time window, but only when the child is alert enough to protect their airway. It is never something to try at home. Bring the package or a photo of it, because the exact THC and CBD content helps the team predict how long symptoms will last.

What not to do

Do not make your child throw up. It does not remove much THC and it risks choking.
Do not give food or drink to a drowsy child.
Do not leave them alone to sleep it off. Keep them where you can see their chest rise and fall.
Do not assume it was "just CBD." Many CBD products contain THC, and labels are not always accurate.
Do not wait for symptoms to get worse before calling. Early guidance beats a late drive to the ER.

Skip the call and dial 911 if

Breathing is slow, shallow, or noisy
Lips or fingertips look blue or gray
There is a seizure
Your child cannot be woken or does not respond to their name

Keeping it from happening again

Treat edibles like medication, not like a snack. That means a locked box, stored up high, out of sight, and never in the kitchen next to actual candy. Keep everything in its original child-resistant packaging so you can count what is left. Homemade edibles are the hardest to dose and the easiest for a kid to mistake for a cookie, so if you make your own, label it clearly and lock it away.

Tell babysitters, grandparents, and anyone else who watches your kids that edibles are in the house or that they should never bring them along. Save the Poison Control number in your phone contacts now, while nothing is happening. A two minute setup today is worth a lot at 11 pm on a Tuesday.