Bayer nausea and gastric pain. He also said he had invented the name "aspirin" and was the first person to use the new formulation to test its safety and efficacy. Bayer contends that aspirin was discovered by Felix Hoffmann to help his father, who had arthritis. Various sources support the conflicting claims. Most mainstream historians attribute the invention of aspirin to Hoffmann and/or Eichengrün. Heroin (diacetylmorphine), now illegal as an addictive drug, was introduced as a non-addictive substitute for morphine, and trademarked and marketed by Bayer from 1898 to 1910 as a cough suppressant and over-the-counter treatment for other common ailments,
Analgesic potential hazards of topical anesthetics entering the bloodstream when applied in large doses to the skin without medical supervision. These topical anesthetics contain anesthetic drugs such as lidocaine, tetracaine, benzocaine, and prilocaine in a cream, ointment, or gel. The word "analgesic" derives from Greek "an-" (, "without"), "álgos" (, "pain"), and "-ikos" (, forming adjectives). Such drugs were usually known as anodynes before the 20th century. Some novel and investigational analgesics include subtype-selective voltage-gated sodium channel blockers such as funapide and raxatrigine, as well as multimodal agents such as ralfinamide.. Analgesic An analgesic or painkiller is any member of the