Hydromorphone is in a class of medications called opiate (narcotic) analgesics. It works by changing the way the brain and nervous system respond to pain. How does Hydromorphone Hydrochloride work?
Hydromorphone hydrochloride works in your brain to change the way your body feels pain. It works by binding to the brain’s mu-opioid receptors, reducing pain sensations.

What is the strongest pain killer?

Morphine. Morphine and morphine-like drugs (such as oxycodone, fentanyl and buprenorphine) are the strongest painkillers there are.

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