Opioid-induced hyperalgesia

Opioid-Induced Hyperalgesia or OIH is defined as "is a state of enhanced pain sensitization in patients who are on chronic opioid therapy".

Opioid-induced hyperalgesia causes a much lower pain threshold, which means that pain is greater when opiods are taken compared to when they are not used - which is the opposite of a normal response.

Learn more

 * More opioids, more pain: Fueling the fire - Havard Health