Krokodil (also known as desomorphine) is a highly addictive and extremely dangerous synthetic opioid that has been used as a recreational drug in some parts of the world. The drug originated in Russia and was first reported in the early 2000s. It is made by combining codeine with various household chemicals, such as paint thinner, gasoline, and hydrochloric acid. Krokodil is highly addictive and has a short half-life, which means that users need to inject the drug frequently to maintain its effects. The drug can cause a range of severe health problems, including skin necrosis (death of skin tissue), abscesses, infections, and gangrene. In some cases, users have had to have limbs amputated due to the damage caused by the drug. Due to the dangerous nature of krokodil, its use is strongly discouraged, and people who are struggling with substance abuse should seek professional help from trained healthcare providers.