Polarised light micrograph of crystallised oxycodone (dihydrohydroxycodeinone). Oxycodone is an opioid medication and commonly prescribed for acute pain conditions but is also known for its high potential for dependency and misuse, leading to significant public health concerns related to opioid addiction. Crystalized and photographed in polarized light with retarders. Magnification: x140 when printed 10 centimetres wide.