ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
It doesn't work for alcohol, iron, lithium, acids, or lye, and can be harmful if someone is drowsy and might choke.
What it's used for
- Some poisonings, as directed by Poison Control or a doctor
How to take it
- Call Poison Control at 1-800-222-1222 first. Don't give charcoal at home unless they say to.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Black stools
- Vomiting
- Constipation
Call 911Anyone who is sleepy, confused, having a seizure, or having trouble breathing after a poisoning
Warnings
- Over-the-counter 'detox' charcoal pills aren't for poisoning.
Other medicines, foods, and alcohol
- It blocks absorption of other medicines.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Used in pregnancy when directed.
Missed doses, overdose, and storage
If you miss a dose
Not applicable: used only in emergencies as directed.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Activated charcoal (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.