A number of drugs have been branded with the infamous black-box
warning -- the strongest possible -- due to increased health risks
associated with taking them. However, the burning question is: Do
these warnings really serve their intended purpose?
Among several high-profile drugs given new black-box warning labels
are non-steroidal anti-inflammatory drugs, or NSAIDs (painkillers
that include ibuprofen and naproxen as well as the blockbuster Celebrex),
which caution against possible cardiovascular and gastrointestinal
risks. Other drugs on the black-box hit list include:
Additionally, when pharmacists give out these drugs, they also
hand over consumer-friendly MedGuides explaining the drugs' risks
and benefits. This is to make sure the only patients who take potentially
dangerous drugs are those for whom the benefits outweigh the risks.
A Struggle to Protect Patients from Drug
Danger
Black-box warnings are a no-brainer, if for no other reason than
to underscore just how toxic most prescription pharmaceuticals really
are; however, some observers suggest the federal agency may be relying
too much on the warnings and accompanying printed materials. In
fact, even FDA officials admit they are unsure as to how effective
black-box warnings and MedGuides are in maximizing safe prescribing.
And while some critics believe black-box warnings don't offer much
help, physicians don't seem to be much better ...
Researchers tracked the effectiveness of four Dear Doctor letters
after the FDA posted a warning involving Rezulin (once produced
by a Warner-Lambert subsidiary) that concerned potential liver damage.
Based on Medicaid claims tracked solely in Ohio, the number of patients
who actually got their liver enzymes checked never rose beyond 26
percent.
According to the study, physicians are only part of the problem:
Researchers argued both pharmacists and patients must step up to
the plate and take their share of the responsibility for paying
attention to the medications they sell and take.
Therefore, merely handing patients a MedGuide with their black-box-labeled
drug is certainly not enough to protect them from the harmful effects
of pill popping.
USA
Today April 26, 2005
Pharmacoepidemiology
and Drug Safety, January 2005, Vol. 14, Issue 1: 1-9
|