Used fentanyl patch could lead to an inadvertent overdose.
D000279:Administration, Cutaneous; D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000506:poisoning*; D062787:Drug Overdose / Q000517:prevention & control; D017743:Equipment Reuse; D005283:Fentanyl / Q000008:administration & dosage / Q000506:poisoning*; D006801:Humans; D017744:Medical Waste Disposal / Q000379:methods* / Q000592:standards; D017410:Practice Guidelines as Topic
D000701:Analgesics, Opioid; D017744:Medical Waste Disposal; D005283:Fentanyl