Controlled Substances

In an interesting article entitled “US Seeks To Rein in Painkillers” http://www.nytimes.com/2011/04/20/health/20painkiller.html the authors report that the Obama administration seeks legislation requiring doctors to undergo training before being permitted to prescribe powerful painkillers like OxyContin. This appears to be the most aggressive step taken by federal officials to control both the use and abuse of the drugs. Among the drugs that would most probably fall under a stricter licensing measure are OxyContin, fentanyl, hydromorphone and methadone. They are considered critical to pain treatment. But they also have been associated in recent years with a national epidemic of prescription drug abuse and addiction and thousands of overdose-related deaths. Proponents of the training argue that it would help doctors better identify patients who would benefit from treatment with long-acting narcotics, and help them unmask patients feigning pain to get drugs they then abuse. Opponents say a training requirement will reduce the number of doctors prescribing pain drugs and hamper patient care. The F.D.A. released new regulations on Tuesday that would require the makers of long-acting or extended release painkillers to provide training to doctors but would not require doctors to take such courses. This proposal is similar to the one rejected as too weak in last year’s debate. Dr. Janet Woodcock, who heads the F.D.A. Center for Drug Evaluation and Research, indicated that the new agency rules were effectively a placeholder until legislation was passed or were to be used if a relevant bill failed.

In my opinion additional education and training requirements for controlled substances prescribing are long overdue! Most physicians have no, or very limited knowledge, of the appropriate indication, pharmacology and adverse drug interactions of controlled substances. I often see patients who were prescribed Methadone, a long-acting opioid, at a four-times daily dosage schedule. These physicians seem to be clueless about the fact that Methadone metabolism rates vary greatly between individuals, up to a factor of 100! These metabolism rates can range from as few as 4 hours to as many as 130 hours, or even 190 hours. This variability is apparently due to genetic variability in the production of the associated enzymes. Ignoring these pharmacological facts can lead to accidental overdose and death.

Additional training requirements should be implemented to protect our patients and our families.

Yours

Bernd