Garcia believed metformin to have bacteriostatic, antiviral, antimalarial, antipyretic and analgesic actions. Propyphenazone is a derivative of phenazone with similar analgesic and antipyretic effects. It is used in medicine as an analgesic and antipyretic. Analgesic or narcotic correctly identifies these drugs. Detomidine is a sedative with analgesic properties. As an NSAID, indometacin is an analgesic, anti-inflammatory, and antipyretic. Paracetamol is classified as a mild analgesic. Phenazone was used before 1911 as an analgesic and antipyretic. Later books have included the narcotic property for use as analgesic pain reliever. As an analgesic, codeine compares weakly to other opiates. Analogues of diphenhydramine include orphenadrine, an anticholinergic, nefopam, an analgesic, and tofenacin, an antidepressant. A topical analgesic (e.g. benzydamine mouthwash) may reduce pain. Frequently, the combination of a tranquilizer such as diazepam and an oral analgesic is administered. Pain from the sores may be eased with the use of analgesic medications. In Russia, desomorphine was declared an illegal narcotic analgesic in 1998.