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Opioid ComparisonI've seen a couple of people ask about comparison of one opioid against another and came up with a sample list. I didn't want to lose it and wanted it shared so hopefully this will be a good place as a repository. If there are any mistakes or additions please feel free to add. This is just a quick comparison so no quoting, as it is only single sourced. Also amounts shown are only for comparison in relation to each other.
***Used only in sedating large animals. Sources: ( categories: Discussion of Prescription and OTC Meds )
 nice Rawoody! that is a very
nice Rawoody! that is a very good list and looks pretty accurate. i know it is hard to put togethter a list since they are all slightly different. i understand that it is equal doses but is this one for someone who is opiate niave or tolereant? Dihydrocodeine
Same potency as codeine. Source: http://en.wikipedia.org/wiki/Dihydrocodeine
Also as an example to make sure things are clear:
Using hydrocodone as an example, the 6 refers to the potency as compared to codeine. The second number refers to how much hydrocodone is needed to be equivalent to 30 mg of codeine. THe 3rd number(.6) and the 4th is the same as the first 2 but in relation to 10 mg of morphine. Opioid Comparison
Thanks for the post, Rawoody. Your information is very interesting and will help readers wanting to compare the relative strengths of various opioids. one last question. do you
one last question. do you have any idea where levorphanol into the chart. i have had a difficult time researching this medicine. i understand that it is an inexpensive medicine and from the best i can tell it is a morphine dirivitive but i have also read things saying that it was similar to methadone. needless to say i am very confused. any help is appreciated. Carfentanyl vs. ketamine
Carfentanyl is completely different from ketamine. While ketamine is widely used on animals as well, it is also used in humans for anaesthesia and even treating migraines. Carfentanyl, on the other hand, is way too potent to be considered for human use, therefore is only used in veterinary practice to sedate large animals. Phisher
Levorphanol is listed as 8x as potent as morphine. Source: http://redpoll.pharmacy.ualberta.ca/drugbank/cgi-bin/getCard.cgi?CARD=APRD00764.txt Anileridine = 2.5x Meperidine and .25x morphine Source: http://designer-drugs.com/pte/12.162.180.114/dcd/chemistry/anileridine.html Dextropropoxyphene (Darvon) .25-.33x codeine and approx 9x ASA Source: http://www.dea.gov/pubs/abuse/4-narc.htm Buprenophine is approx 40x Morphine Source: http://www.dea.gov/pubs/abuse/4-narc.htm outstanding work as usual
outstanding work as usual rawoody, thanks alot! i have had a time trying to find any good info on the med. it is odd b/c not alot of people seem to be rx'ed to it yet it is so cheap. for one reason or another doctors dont choose it often and i was just curious its potency in relation to other drugs in that class. Pentazocine
Pentazocine (Talwin) is considered to be 1/3 to 1/6 (ave. 1/4) as potent as morphine.
Source: http://arthritis.about.com/od/talwinnx/ i thought this was
i thought this was interesting http://www.oqp.med.va.gov/cpg/cot/G/OT_Med.pdf though i still think that rawoodys is more representative of the majority of the tables i have seen. also his is much more comprehensive but nevertheless it is interesting. all thoughts and opinions expressed are those of my own and should not be mistaken for medical advice. i am not a doctor nor a pharmacist. all medical questions should be answered by a licensed pharmacist, doctor, or primary care manager. Bump
We added a permanent link to the menu item Health, Drug Topics. Rawoody's chart is in the subsection All You've Ever Wanted to Know About .... Would a 'sticky' post at the top of this forum (Discussion of Prescription and OTC Meds) be better? I think a 'sticky' would
I think a 'sticky' would benefit many users. Between the link in the 'Health, Drug Topics' and a sticky post, this thread would be hard to miss. I believe that some users never venture into the 'Health, Drug Topics' menu. It would also benefit those looking for this info, but do not use the search feature for whatever reason. And more often those searching for this info, but do not necessarily know the proper search terms they are looking for or need to use.  Sorry, you're going to have
Sorry, you're going to have to do the math on the other two. Here is a screen shot from Globalrph.com
Gtrplayer Accuracy of Demerol Strength
i've done a little bit of reaseach and i'm finding that your demerol strengh might be off. please correct me if i'm wrong http://www.uofapain.med.ualberta.ca/images/UGPainlecture1dec2006.jpg http://www.uofapain.med.ualberta.ca/opioidconversion.htm
btw, this is a really nice site
[EDIT] oh, i see where the conversion came from, you were using IV rather than oran Demerol. It seems that you switch between oral and IV/IM for your morphine comparisons.   what about methadone acute and chronic?
what about methadone acute and chronic? *None of this should be construed as medical advice. You should always speak with a licensed MD. or medical professional for professional medical advice. These opinions are my own and should not be taken as professional medical advice* It's a wonder you got out of
It's a wonder you got out of preschool if can't multiply 6x10=60mg of codiene. ok 4th grade but still....... *None of this should be construed as medical advice. You should always speak with a licensed MD. or medical professional for professional medical advice. These opinions are my own and should not be taken as professional medical advice* definately not
IV means intraveinously. acute is for short time period, chronic is for long term use since the half life builds rapidly, personally I know where it fits in the chart but its just not in it and sometimes it varies so much from person to person that they might just have not wanted to mess with it. *None of this should be construed as medical advice. You should always speak with a licensed MD. or medical professional for professional medical advice. These opinions are my own and should not be taken as professional medical advice* I know.
I know. But Methadone is not to be a first line analgesic. We've all read about the kid with tooth pain, and the dentist gave him Methadone. I'm not saying it doesn't happen, I'm just saying that it's not a conventional form of acute medicine.
i didnt hear that one but I
i didnt hear that one but I think it means when you first switch from a less potent narcotic and don't have methadone built up in your system, so when you first start on it you don't have days and days of half-lifes of the drug left in your system like you do once you start a daily regimon for a long period. *None of this should be construed as medical advice. You should always speak with a licensed MD. or medical professional for professional medical advice. These opinions are my own and should not be taken as professional medical advice*  Reckless methadone prescribing
I went to my FAMILY DOC of like 25 years complaining about migraing headaches....and outta the blue he writes this script for methadone....LOL, I was floored, it worked Remember: Just do it.. EVERY PILL EVERY DAY Methadone
Methadone is used for both actually but the reason why drs use it with chronic pain is because it has a half -life of half.lol. Take 50mg at 8am monday and 8am tuesday there are still 25mg in your body and also it builds and builds this is why alot of ppl take it and say well it dont work but its stronger than hydro and I do think that it is stronger than hydromorphone. tolerance and response
It all depends on other drugs you're taking, your particular response to the drug, the effects of the other drugs on the narcotics, and just how they affect you and how you metabolize them...something i might take might put someone else underground....It's subjective as a function of tolerance. Ray Remember: Just do it.. EVERY PILL EVERY DAY  awesome, like that chart!
1 question, or where is the Methadone (dolophine)? As it is still can be prescribed 4 pain as well. Several of my sources say that Levomethadyl Acetate ,Buprenorphine & Methadone as different drugs. KnightMetal
(DONT GET ME WRONG, I AM NOT COMPLAINING, I LOVE THIS CHART, I JUST WANT TO KNOW WHERE THEY STAND IN THERE) Well this blog is a real
Well this blog is a real encyclopedia concerning drugs. I had a lot to learn here, these informations are very useful specially if we think about people fighting addiction. Edited by Mod3 - please, no links to commercial enterprises except:
Real life Opioid Comparison
..It's funny, because I had a colonoscopy done last Monday, I know you didn't want to know that, just as much as i didn't' want to have it, but they gave me 20mg versed and 500mcg of fentanyl and I don't feel like it affected me as much as it should have and compared to all the other people i saw everyone was zonked and i was WIDE awake, and it kinda scares me ...and it's also weird that i've not taken either of those drugs extensively, versed once or twice and that was the first time for fentanyl, don't get me wrong, i didn't feel any pain or discomfort during the procedure, but I makes me wonder about anesthesia awareness...God, would that be HORRIBLE!!! Ray Remember: Just do it.. EVERY PILL EVERY DAY (edited) Yeah, since you're not what
Yeah, since you're not what they call "opiate naive" they affected you less. Your receptors need a certain amount of any opiate (tolerance), so that's why you were probably far and away the least affected. If there is a next time, let them know that you aren't sedated easily, they'll adjust the dosage. If worse comes to worse, act like you're panicking and don't feel anything. haha. Edit: Wow, I just noticed this was a few months old. Apologies.
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..still to this day he hasn't done it again, although i haven't seen him in years, he dropped me as a patient when he found out I was HIV+and the was in 1999 (YES, it still happens, this is rural ky)......Ray
Joined: 2005-07-25