Question:
A couple years ago, there was a push at our hospital to avoid using demerol for pain management. The discussion at the time was buildup of breakdown products that were less effective in pain control (so you needed to keep giving demerol for pain), but the buildup was just as effective in killing you.
Per the recent events with Michael Jackson and the possibility that he was receiving chronic Demerol (based on gossip anyway), it makes one wonder if our hospital's past concern about toxicity rang true in Jackson's death. MORE FOLLOWS BENEATH MY REPLY.
REPLY (WMR):
During my chairmanship of the AAFP course on colonoscpy 1984-2003, my book described and the accompanying lectures taught demerol as safe, effective, reliable, cheap, and universally available. But, we described a very deliberate and specific protocol of "know your patient(FP 101),start low,go slow, monitor VS, and recovery until stable".
While morphine, dilaudid, and fentanyl equivalents exist, I personally have continued with demerol, and, in over 25 years of practice, have never seen a negative outcome from demerol. As one of the "go to" defense witnesses 1985-2005, I never saw a family medicine lawsuit. As an editor and author, I am aware on no published bad outcomes in the family medicine world or in the world of sedation/analgesia for office surgeries such as endoscopy.
The numerator of a sensational case report dwarfed the denominator of long term success. Bendectin suffered a similar fate. Drawing conclusions from "celebrity medicine" is particularly treacherous.
Problems come from physicians attempting to use IV sedation/ analgesia without any real time spent in mastering 1-2 hours of basic material. This material is almost never taught in current residencies.For this reason I always tested on IV sedation/analgesia principles, and I enncouraged passage of an ACLS course at least every 5 years for the right to do colonoscopy/EGD during the time that I chaired those courses.
I have lost touch with the AAFP course, but Bill Coleman, Stu, and others still give the course today. Much of the prevailing caution about demerol is similar to the great sublingual nifedipine scare. A tempest in a teapot.
Long term use of injectable and po narcotics for patients lacking the care of a physician who coordinates all of the disease and mental health issues(over 80% of current physicians), will lead to a small number of unnecessary tragedies. These will be widely publicized by single issue profiteers and well intentioned reductionists.
ADDITIONAL DEMEROL TOXICITY OPINION IS ATTACHED BELOW. I THINK THAT THESE DANGERS ARE OVERSTATED, BUT HAVE NO DISAGREEMENT WITH THOSE WHO CHOOSE TO USE FENTANYL OR MORPHINE OR DILAUDID. PETHIDINE(see below) IS THE BRITISH NAME FOR MEPERIDINE--WMR
Pennsylvania Patient Safety Authority says...
“Demerol is an old, lumbering dinosaur which must be taken out of use in order that effective pain control can become a reality.”
Dr. J. Davis Daniels
The Passing of Demerol
I have attached the thorough article talking about this medication.
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http://en.wikipedia.org/wiki/Meperidine
Pethidine is quickly hydrolysed in the liver to pethidinic acid and is also demethylated to norpethidine, which has half the analgesic activity of pethidine but a longer elimination half-life (8-12 hours[14]); accumulating with regular administration, or in renal failure.
Norpethidine is toxic and has convulsant and hallucinogenic effects.
The toxic effects mediated by the metabolites cannot be countered with opioid receptor antagonists such as naloxone or naltrexone and are probably primarily due to norpethidine's anticholinergic activity probably due to its structural similarity to atropine though its pharmacology has not been thoroughly explored.
The neurotoxicity of pethidine's metabolites is a unique feature of pethidine compared to other opioids.
Interactions
Pethidine has serious interactions that can be dangerous with MAOIs (e.g., furazolidone, isocarboxazid, moclobemide, phenelzine, procarbazine, selegiline, tranylcypromine). Such patients may suffer agitation, delirium, headache, convulsions, and/or hyperthermia. Fatal interactions have been reported including the death of Libby Zion.[15] It is thought to be caused by an increase in cerebral serotonin concentrations. It is possible that Pethidine can also interact with a number of other medications, including muscle relaxants, some antidepressants, benzodiazepines, and alcohol.
Pethidine is also relatively contraindicated for use when a patient is suffering from liver, or kidney disease, has a history of seizures or epilepsy, has an enlarged prostate or urinary retention problems, or suffers from hypothyroidism, asthma, or Addison's disease.
Index--sedation/analgesia, office surgery, demerol, numerator news