Morphine IR - What does the IR stand for in Morphine Sulphate IR?

Answers (3)

27 Aug 2010

I believe the IR should stand for "instant" (or immediate) release.

Votes: +1
CaptCastle 30 Aug 2010

Thank you for your answer. That's what I was thinking.

27 Aug 2010

Yeah the other posters right. If you see e.r,it's extended relief.

Votes: +1
CaptCastle 30 Aug 2010

Thanks for the info...

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.

Votes: +0

Further Information

Search for questions

Still looking for answers? Try searching for what you seek or ask your own question.

Similar questions

What schedule is morphine sulphate?

1 answer 30 Jun 2010

What are the costs of morphine sulphate in the quantity of 90 capsules?

morphine sulphate 15mg

2 answers 15 Feb 2012

How long does it take for Morphine to leave your system?

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