If a child accidentally eats cannabis, most often a gummy, chocolate, or drink, the first signs appear 30 minutes to 2 hours later: heavy sleepiness, unsteady walking, vomiting, and a fast heartbeat. Most children recover fully with observation and supportive care, but high-dose edibles can cause serious problems in small bodies, including slow breathing, seizures, agitation, and in rare cases coma. Call Poison Help at 1-800-222-1222 right away, or 911 if the child is hard to wake, struggling to breathe, or seizing. Do not wait for symptoms to appear before calling, and bring the packaging so clinicians know the product and the THC dose.
kids can accidentally eat cannabis what happens
Why edibles drive most serious child cases
Convenience formats have changed the risk profile. Gummies, single-serve pouches, chocolates, and canned drinks are portable, quiet, and often indistinguishable from real candy, and they taste good enough that a toddler will keep eating. Edibles also absorb slowly, so symptoms lag behind the amount swallowed. A child can eat an entire pack before an adult notices anything is wrong.
child ate cannabis oil side effects
Dose concentration makes this worse. One gummy commonly holds 5 to 10 mg of THC, and a resealable bag may hold 100 mg or more. For a 10 kg toddler, 10 mg is already a meaningful dose.
What symptoms should you watch for?
Early signs (30 minutes to 2 hours after eating)
- Unusual sleepiness, floppy posture, or trouble staying awake
- Wobbly walking, clumsiness, or a drunk-looking gait in a walking child
- Nausea and repeated vomiting
- Fast heart rate, flushed skin, or wide (dilated) pupils
- Irritability, crying that will not settle, or confusion
Emergency signs
- Slow, shallow, or irregular breathing
- Seizure, twitching, or stiffening
- Cannot be woken, or limp and unresponsive
- Pale or bluish lips
Effects usually peak between 2 and 4 hours and can last 12 hours or longer, so a child who looks fine at hour one still needs monitoring. Symptoms can worsen after the first hour.
How serious is a child cannabis ingestion?
Serious outcomes are uncommon but real, and they cluster in children under 6 and in edible exposures. Treated children typically need monitoring, fluids, and time; a minority need breathing support or intensive care. There is no antidote for THC, and naloxone does not reverse it.
Severity depends on milligrams of THC, the child's weight, and whether other substances are in the product. Chocolate and baked goods can also contain allergens, and some products contain multiple cannabinoids.
What should you do right away?
- Call Poison Help at 1-800-222-1222 and describe the product, the THC amount per piece, and how much may be missing.
- Save the packaging and any leftovers for responders.
- Keep the child awake enough to monitor breathing, and lie a sleepy child on their side.
- Do not induce vomiting or force food or drinks on a drowsy child.
- Call 911 for breathing trouble, seizure, or unresponsiveness.
Tell the medical team the truth about what was eaten. Poison specialists give guidance based on dose and symptoms, not on judgment, and withholding information delays care.
How is it treated?
Care is supportive: monitoring, IV fluids if needed, anti-nausea medication, and sedatives for severe agitation. Activated charcoal may be used within the first hour or two in some cases. Children who need it are usually observed for several hours and often discharged within 24 hours.
How do you prevent the next exposure?
- Store cannabis in a locked box, up high, in child-resistant packaging, never in a purse, backpack, or snack drawer.
- Count your supply after each use, since convenience pouches make it easy to lose track.
- Avoid using candy names or familiar snack containers for cannabis.
- Treat edibles as a medicine, not a treat, and never share them around children.
The convenience that makes edibles appealing to adults is exactly what makes them risky for kids: they look like food, they taste like food, and they come in doses far above what a small child can handle.