ADDICTION Xanax Overdose: Symptoms, Fentanyl Risk and Emergency Treatment Xanax overdose can cause severe CNS depression and coma, with much greater respiratory risk when opioids, alcohol or counterfeit pills are involved.
ADDICTION PCP Overdose and Toxicity: Signs, Seizures, Psychosis and Emergency Care Severe PCP toxicity can cause seizures, hyperthermia, coma, respiratory depression, muscle breakdown and dangerous agitation. Learn warning signs and emergency response.