“…It is believed that the use of "Krokodil" has already migrated to nearby countries including Poland, Czech Republic, France, Belgium, Sweden, Norway, and other European countries due to Russian immigration [5]. The process of "Krokodil" synthesis is nearly identical to the clandestine synthesis of methamphetamine from ephedrine [6,7], consisting of a simple extraction and reduction to obtain the opioid derivative. "Krokodil" is obtained using codeine as a starting material, which is commonly prescribed and sold in the pharmaceutical market in the form of tablets and syrups, and it can be synthesized using minimal equipment and synthetic steps [8].…”