7 Nov 2011
The first answer was correct:
IR = Instant release. Drug will take effect from 5-30 minutes after ingestion and it will stay effective for 2-6 hours.
ER/SR = Extended or Sustained Release. Drug will take effect from 15-60 minutes after ingestion and it will stay effective for anywhere from 4-12 hours from ingestion.
Breaking/cutting/crushing an IR tablet can make it take effect faster, but possibly shorten (slightly) how long it is effective.
One should NEVER break/cut/crush an SR tablet as they will get a MUCH higher dose than is on the label. It WILL take effect faster, however it will NOT last nearly as long.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
What does morphine SR stand for? Like the IR is immediate release.
1 answer • 13 Apr 2010
hello i am using your morphine sulphate info for an essay and i need to reference how do i do this please as there is no author and when was updated ...
1 answer • 10 May 2010
My oncologist prescribed morphine because my insurance won't pay for Fentanyl until I have tried other pain medications first. My question is: ...
1 answer • 1 Aug 2010
morphine sulphate 15mg
2 answers • 15 Feb 2012
If you are changing meds from morphine sulphate to another pain med , how long will it take for the morphine to leave your system ?
1 answer • 12 Nov 2012