RT Book, Section A1 Williams, Saralyn R. A1 Thurman, R. Jason A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181056724 T1 Opioid Toxicity T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessmedicine.mhmedical.com/content.aspx?aid=1181056724 RD 2024/04/24 AB The term opioid refers to all compounds with opium-like activity. Heroin is made from morphine and is usually sold as a white powder; however, the color may vary to dark brown. “Black tar” heroin may be sticky like roofing tar or hard like coal and is usually dark brown to black in color. Diversion and abuse of opioids is a common practice that is resulting in an increased number of opioid deaths. Opioid-dependent patients may use alternative supplements like kratom to reduce opioid withdrawal symptoms.