Painkiller

Analgesic drugs are used to manage pain, and are distinct from anesthetics, which reduce or eliminate sensation. The choice of analgesic depends on the type of pain, and for neuropathic pain, classes of drugs not normally considered analgesics, such as tricyclic antidepressants and anticonvulsants, may be considered. Many over-the-counter analgesics, such as NSAIDs, are available, while others, such as some opioids, require prescription due to risks of overdose, misuse, and addiction.learn more on wikipedia