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Non-opioid analgesia golden pearls

Updated: Apr 17, 2022

Paracetamol - not first line for chronic osteoarthritis or back pain


NSAIDs

- Main stay for MSK pain with an inflammatory component.

- Can by synergistic with opioids


TCA/SNRI - NNT of 3.5 - 6.5 for one person to experience 50% reduction in pain


- Primarily noradrenaline effect working on reduced re-uptake of noradrenaline from the post-synaptic region leading to up-regulation of descending inhibitory pathways


- Need to get to a reasonable dose, and be on it for at least 2-4 weeks to have neuroprotective proteins created


- Ceasing should be done through tapering the dose over 2-4 weeks

(interestingly authors suggest using fluoxetine 10 mg as well when discontinuing over 2-4 weeks - this is new to me!)


TCA

- Often the antihistaminergic side effects such as sleep initiation and maintenance can be helpful

- Start low and go slow

(Nortriptyline - 10 mg/day orally increasing weekly in 10-25 mg up to 75-150mg - over 4-6 wks)







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