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Doctors over prescribing drugs { April 13 2007 } Original Source Link: (May no longer be active)
http://www.npr.org/templates/story/story.php?storyId=9571484http://www.npr.org/templates/story/story.php?storyId=9571484
Health & Science
Drug Ads Play Up Benefits, Downsize Risks
by Allison Aubrey
All Things Considered, April 13, 2007 · Taking medicine used to be only for the sick. But in the age of direct-to-consumer advertising, drugmakers have persuaded a lot of people that taking medicine can be a casual affair, something healthy people should do to stay well.
With more than $4 billion a year spent on pharmaceutical ads, studies show it's increasingly common for people to ask their doctors for drugs they've heard about on TV.
TV ads for the sleeping pill Lunesta air during many popular network shows. One ad begins with a pitch-black screen.
"This is you," a narrator's voice says. "You've awakened in the dark because your sleep aid didn't give you a full night's sleep."
On screen, viewers see a woman with lying in her bed. She's tossing and turning, clearly frustrated.
But during the 60-second advertisement, her sleep problems are put to rest.
"Tomorrow, ask your doctor about Lunesta," says the narrator as gentle music plays and a glowing moth appears.
The woman appears to fall into a deep sleep.
Selling a Feeling
She looks so restful, says former TV producer Al Tompkins. "And when she wakes up, she's just gorgeous," Tompkins says. "She sits right up and stretches and looks great. Who doesn't want that?"
Tompkins, now a consultant with the Poynter Institute, says TV ads like these are persuasive because they sell you a feeling. "I believe you remember what you feel, longer than what you know," he says. "And this spot is long on feeling and clearly the things you could know — the facts, the numbers — are things you'll never remember."
A litany of warnings and side effects is spoken clearly during the Lunesta ad.
The narrator's voice tells viewers, "Until you know how you'll react to Lunesta, you should not drive or operate machinery. Do not take Lunesta with alcohol. Most sleep medicines include some risk of dependency. Side effects may include unpleasant taste, headaches, drowsiness or dizziness."
Reading these warnings, it's easier to remember the details. But when people watch the ad, they're much more likely to be distracted by the moving pictures and music. The images of the gliding luna moth almost feel like an IMAX movie.
"When the eye and the ear compete," says Tompkins, "the eye wins."
Easy-to-Forget Side Effects
There are many other reasons people may not recall the side effects or warnings mentioned in television ads.
"There's so much information going on in one minute," says Duke University's Ruth Day. A cognitive scientist by training, Day studies how well people remember and comprehend drug advertisements.
When side effects are chunked together in the middle of an ad, Day says people have a very hard time recalling them.
"If you present a list of items, people are going to do well in the beginning and the end," Day says. "But they'll have trouble with the middle and a little past the middle."
Applying this principle to the Lunesta ad, it's possible that viewers remember the first couple of warnings, about not driving or drinking alcohol, but by the time the "risk of dependency" is mentioned, attention is divided.
Speed is also an issue. Side effects are usually spoken more quickly than the rest of the ad.
And there's also readability.
Day's research shows you only need a sixth-grade reading level to understand the benefits presented in most ads. But you need a ninth-grade reading level to understand the risks.
"Having a three-grade level difference between understanding some of the information, vs. other information," says Day, "is very striking."
Informational or One-Sided?
A little more than a decade ago, most medicines went by technical-gobbledy-gook-names that patients didn't pay much attention to. That was the job of doctors.
But, then the FDA warmed to the idea that TV commercials about drugs could help educate consumers. In theory, ads inform people about medical conditions and treatments they don't know about. But there's a hitch.
"I think what consumers really need to understand," says Dominick Frosch of UCLA, "is that they're getting a one-sided message."
A message that prompts more of us to ask for drugs we don't really need.
One bit of evidence that this happens comes from a study that used paid actors to portray patients with a wide range of emotional problems. When the actors went to doctors and asked for one drug by name, Paxil, doctors often obliged.
"There was a dramatic effect of patient requests on prescribing rates," says Richard Kravitz of the University of California, Davis, who led the research.
In many cases, the actor patients were describing symptoms that warranted the drug they asked for. But not always.
The downside is certainly that patients who may not have required an anti-depressant prescription got one as a result of these requests, says Kravitz. "Therefore, we might conclude that doctors are more malleable than we might hope."
Over-prescribing can lead to serious problems. In one recent case, the over-prescribing of a certain class of anemia drugs led to some deaths. The drugs are intended for certain cancer patients undergoing chemotherapy, but a TV commercial made it seem other patients may benefit, too.
Watch with a Skeptical Eye
"I think in general it's very important to approach these drugs skeptically," says Lisa Schwartz, professor of medicine at Dartmouth. The problem with most drug ads, according to Schwartz, is that they lead people to believe that the benefits are certain.
Take for instance, that Lunesta sleeping pill. According to the ad:
"Non-narcotic Lunesta can help you sleep seven to eight peaceful, quiet hours."
Schwartz was curious about this statement, so she analyzed the largest research study behind the claim. What she found was that "most people were not getting seven to eight hours of sleep at all."
In turns out, the volunteers in the study who took Lunesta slept on average 6 hours and 22 minutes per night. This compares with those who took a placebo, or sugar pill. They slept an average of 5 hours and 45 minutes.
"So it was just 40 minutes more of sleep," says Schwartz.
Sepracor, the company that makes Lunesta, says the seven- to eight-hour claim is actually based on a different study, in which people taking the drug spent three nights in a laboratory where they were closely monitored and were not disturbed for at least eight hours.
On those nights, 68 percent of the people who took Lunesta slept an average of seven hours or more. Of those who got the placebo, 37 percent slept that long.
Some people may be glad for even an extra 40 minutes of sleep, and for them, Lunesta may make sense.
But Schwartz worries that the commercial leads viewers to think the drug's effect is much more dramatic. This may help explain how Lunesta generated a $500 million in sales last year.
Pharmaceutical advertising has become big business. "It's huge," says Bob McKinnon, a former corporate advertising executive who now works on public interest campaigns.
"It's one of the largest growing categories in advertising spending, and their sales reflect that as well," he says.
The ad campaigns use the same tactics that Madison Avenue perfected decades ago to sell dish soap or stain removers.
They're produced in such a way to create an ideal sense of life, says McKinnon, "where everyone is happy, and every problem you have can be solved with a quick fix."
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