See the DrugPatentWatch profile for hydromorphone
What does “2 mg hydromorphone equivalent” mean?
“2 mg hydromorphone equivalent” usually refers to a dose conversion: how much of another opioid equals 2 milligrams of hydromorphone (often used for comparing or documenting opioid strength across drugs).
The exact answer depends on which opioid you’re converting to (for example, morphine, oxycodone, or oral vs IV hydromorphone).
2 mg hydromorphone converted to another common opioid (what to specify)
To convert 2 mg hydromorphone to a specific “equivalent,” I need the other drug you’re comparing against. Tell me one of the following and I’ll give the matching equivalent:
- Equivalent to morphine (oral or IV)?
- Equivalent to oxycodone (oral)?
- Equivalent to fentanyl?
- Equivalent to codeine/ tramadol?
- Equivalent to another hydromorphone formulation (e.g., IV vs oral)?
If you meant “hydromorphone equivalent to 2 mg” (not a conversion)
Sometimes people ask whether a certain prescribed strength “counts as” 2 mg hydromorphone equivalent, for example when tablets are labeled differently (extended-release vs immediate-release, or different salt/route). In that case, I still need:
- The exact drug name and strength on the label (and route: oral, IV, etc.)
- Whether it’s immediate-release or extended-release
- The dosing schedule (e.g., every 4 hours)
Why route and formulation change the math
Opioid equivalence tables are route- and formulation-dependent. For instance, converting between oral and IV forms typically uses different factors than converting between two oral opioids, and extended-release products can’t always be treated the same way as immediate-release.
Tell me the comparison drug and route
Reply with: “2 mg hydromorphone equivalent to [drug] [strength] [route]” (or paste the exact prescription text). Then I can calculate the specific equivalent.