Oxycodone, sold under the brand names Roxicodone and OxyContin (which is the extended release form) among others, is a semi-synthetic  opioid medication used for treatment of moderate to severe pain. It is highly addictive and a common drug of abuse. It is usually taken by mouth, and is available in immediate-release and controlled-release formulations. Onset of pain relief typically begins within fifteen minutes and lasts for up to six hours with the immediate-release formulation. In the United Kingdom, it is available by injection. Combination products are also available with paracetamol (acetaminophen), ibuprofen, naloxone, naltrexone, and aspirin.Common side effects include euphoria, constipation, nausea, vomiting, loss of appetite, drowsiness, dizziness, itching, dry mouth, and sweating. Severe side effects may include addiction and dependence, substance abuse, irritability, depression or mania, delirium, hallucinations, hypoventilation, gastroparesis, bradycardia, and hypotension. Those allergic to codeine may also be allergic to oxycodone. Use of oxycodone in early pregnancy appears relatively safe. Opioid withdrawal may occur if rapidly stopped. Oxycodone acts by activating the μ-opioid receptor. When taken by mouth, it has roughly 1.5 times the effect of the equivalent amount of morphine.Oxycodone was first made in Germany in 1916 from thebaine. It is on the World Health Organizations List of Essential Medicines. It is available as a generic medication. In 2020, it was the 54th most commonly prescribed medication in the United States, with more than 12 million prescriptions. A number of abuse-deterrent formulations are available, such as in combination with naloxone or naltrexone.
Subacute cutaneous lupus erythematosus  is a clinically distinct subset of cases of lupus erythematosus that is most often present in white women aged 15 to 40, consisting of skin lesions that are scaly and evolve as poly-cyclic annular lesions or plaques similar to those of plaque psoriasis.Characteristically the lesions appear in sun-exposed areas such as the vee of the neckline or the forearms, but not the face. It may be brought on by sun-sensitizing medications, but is usually associated with autoimmune disorders such as rheumatoid arthritis and Sjögrens syndrome.Therapy generally involves sun avoidance and protection and topical corticosteroids. Sometimes systemic drug treatment is necessary. Besides corticosteroids other immunosuppressants such as methotrexate are also used.Lesions of SCLE may have an annular (shaped like a ring) configuration, with raised red borders and central clearing. See also
Lupus erythematosus
List of cutaneous conditions
List of human leukocyte antigen alleles associated with cutaneous conditions

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