non-opioid and adjuvant analgesics
/ AD-joo-vant an-al-JEE-zik /
Opioids get most of the attention, but the workhorses of everyday pain relief are far more ordinary drugs, and some of the best medicines for nerve pain were not designed as painkillers at all. Non-opioid and adjuvant analgesics are this broad, unglamorous toolkit, and they carry most of the load in chronic pain because they target pain mechanisms that opioids handle poorly.
Non-opioid painkillers are the familiar ones. Paracetamol (acetaminophen) acts mainly in the brain and is gentle but modest in strength. Non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen and naproxen, calm the inflammatory chemicals that fire pain sensors, so they are good for inflammatory and tissue (nociceptive) pain, but can harm the stomach, kidneys, and heart with long use. Adjuvant analgesics are drugs whose main job is something else, yet which relieve pain by acting on the nervous system. Certain antidepressants (such as amitriptyline or duloxetine) strengthen the brain's descending pain brakes, and certain anticonvulsants (such as gabapentin or pregabalin) calm over-firing nerves. These adjuvants are the mainstay for neuropathic and amplified pain, where ordinary painkillers fall flat.
Two points matter for honest practice. First, choosing the drug follows the mechanism: an anti-inflammatory for a hot, swollen joint, but a nerve-acting adjuvant for burning nerve pain, so naming the type of pain comes first. Second, none of these is free of side effects, and for many chronic pains the realistic gain from any pill is modest. This is precisely why medication is one tool among many in pain rehabilitation, leaned on alongside exercise and psychology rather than instead of them. None of this is dosing advice; it is a map of why different drugs exist.
Two patients with leg pain get different drugs. One has a swollen, arthritic knee and is given an anti-inflammatory. The other has burning, shooting pain from a damaged nerve and is given a nerve-calming anticonvulsant, an 'adjuvant' originally made for seizures, because an anti-inflammatory would barely touch nerve pain.
Match the drug to the pain mechanism: anti-inflammatories for inflamed tissue, nerve-acting adjuvants for nerve pain.
These are educational descriptions, not dosing advice. Even non-opioid drugs carry real risks (NSAIDs can damage the stomach, kidneys, and heart), and for many chronic pains the honest benefit of any medication is modest.