R50: Fever of other and unknown origin

R50.2: Drug-induced fever

Drug-induced fever is a condition where an individual develops a high body temperature as a side-effect of taking certain medications. It may occur as an adverse reaction to a drug, or as the result of an immune response to the medication. The fever is often the body's way of showing that something is not right, and it typically presents itself through symptoms such as a temperature above 38 degrees Celsius, sweats, chills, and sometimes, a headache. The fever can occur at any time after the drug has been introduced into the system, whether it's a day or several weeks. Although it is generally not severe, if left untreated, it can lead to more serious health issues, particularly if the underlying cause is not identified and addressed.