Science, Maths & Technology
Pain and Aspirin
...work. Drugs such as aspirin act at the site of the injury to stop or at least reduce the production of messenger chemicals that stimulate the nerve endings. Another class of drugs, the opiates such as codeine and morphine, act on the central nervous system (brain and spinal cord). Sometimes, the aspirin-like and codeine/morphine-like drugs are combined into one remedy,...