Initial Management of Drug Overdose

Assessment and Immediate Actions

The American Heart Association recommends checking for responsiveness and activating the emergency response system immediately, without delay, in patients with suspected drug overdose 1, 2
Assessment of breathing and pulse should be done for less than 10 seconds in patients with suspected drug overdose 3
If the patient is not breathing normally but has a pulse, opening the airway and repositioning, followed by rescue breathing or bag-mask ventilation, should be provided until spontaneous breathing returns 1, 3
Naloxone administration should be considered for suspected opioid overdose, with standard resuscitative measures taking priority over naloxone administration 1
High-quality CPR should be started immediately in patients with cardiac arrest due to drug overdose, with an automated external defibrillator (AED) used if available 1, 3

The American Heart Association recommends administering naloxone while continuing standard BLS/ACLS care for patients with respiratory depression and a definite pulse due to opioid overdose 1
Naloxone can be administered via IV, IM, or subcutaneously, with doses repeated at 2-3 minute intervals if respiratory function does not improve, and monitoring for improvement in respiratory status and level of consciousness after administration 4

Patients should be observed in a healthcare setting until the risk of recurrent toxicity is low and vital signs have normalized after return of spontaneous breathing, with repeated small doses or an infusion of naloxone beneficial if recurrent opioid toxicity develops 1
Monitoring for at least 2 hours after naloxone administration is recommended, with longer observation periods for patients on long-acting opioids 4

The American Heart Association recommends administering naloxone for suspected buprenorphine overdose, following standard resuscitation protocols with airway management and ventilatory support as the primary interventions, with a Class IIa recommendation for appropriately trained providers 5
Standard BLS/ACLS care, including high-quality CPR with chest compressions at appropriate depth and rate, takes absolute priority over naloxone administration in buprenorphine overdose 5
For patients in cardiac arrest, naloxone may be considered after initiation of CPR if high suspicion for opioid overdose exists, with a Class IIb recommendation 5

The American College of Emergency Physicians notes that buprenorphine itself may not reverse respiratory depression from buprenorphine overdose, and naloxone remains the primary treatment, with emerging evidence suggesting buprenorphine may reverse respiratory depression from full agonist opioids 6, 7