□ Opium Oxycodone □ /paracetamol ☆ combination drug Buprenorphine Opioids □ Suboxone □ Subutex • Desomorphine □ Krokodil • Dextropropoxyphene □ Darvocet □ Darvon Hydromorphone □ Dilaudid Mitragyna speciosa □ Kratom • Tramadol • Amphetamine • Caffeine □ Coffee □ Energy drinks □ Tea • Cathinone □ Khat • Cocaine use Countries by • Niranjan Iyengar • Hiroo Yash Johar Produced by Martin Lings.