 [ Symptoms ] i have ibs alternating between constipation and diarrhea could it be related to peri menopause [ Disease ] if overdose is suspected contact your local poison control center or emergency room immediately us residents can call the us national poison hotline at 1 800 222 1222 canadian residents should call their local poison control center directly symptoms of overdose may include unusually fastslow heartbeat slowshallow breathing unconsciousness seizures loss of coordination fever hotdryflushed skin widened pupils change in vision change in the amount of urine confusion hallucinations