Treatment of acute naloxone-precipitated opioid withdrawal with buprenorphine.

Naloxone is a frequently utilized and effective treatment to reverse the life-threatening effects of illicit opioid intoxication. Excessive naloxone dosing in these circumstances, however, may lead to naloxone-precipitated opioid withdrawal in individuals with opioid dependence. Buprenorphine, a partial mu-opioid agonist, is increasingly utilized in the Emergency Department (ED) for the treatment of opioid withdrawal syndrome but little is known regarding its utility in cases of naloxone-precipitated opioid withdrawal. We report a case of naloxone-precipitated opioid withdrawal that was effectively treated with sublingual buprenorphine. An older male was brought into the ED with signs and symptoms of opioid toxicity that was successfully treated with pre-hospital naloxone by Emergency Medical Services. He had a clinical opioid withdrawal scale (COWS) or 10 with abdominal cramping and unintentional defecation. After a discussion of treatment options and possible adverse effects with the patient, the decision was made to administer 4 mg/1 mg of sublingual buprenorphine/naloxone film. The patient reported a rapid improvement in symptoms and at 30 min posttreatment, his COWS was 4. His COWS decreased to 3 at 1 h and this was sustained for 4 h of observation. The patient was subsequently discharged to a treatment facility for opioid use disorder. This case highlights the potential of buprenorphine as a treatment modality for acute naloxone-precipitated opioid withdrawal. Due to the risks of worsening or sustained buprenorphine-precipitated opioid withdrawal, further research is warranted to identify patients who may benefit from this therapy.