What side effects may I notice from receiving Activated Charcoal?

Side effects that you should report to your doctor or health care professional as soon as possible:
-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-confusion
-dry eyes or absence of tears
-extreme thirst
-trouble passing urine or change in the amount of urine
-unusually dry or loose skin
-unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
-dark stools
-diarrhea or vomiting
-swelling or pain in the stomach

This list may not describe all possible side effects for Activated Charcoal. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.