In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

Symptoms of overdose may include:

severe throbbing headache
difficult or slow breathing
muscle cramps
nausea, vomiting
diarrhea
fever
dizziness
fainting
an irregular or slow heartbeat
changes in vision
confusion
flushing
seizures

 

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