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Out of Control? As prescriptions to treat Attention Deficit Hyperactivity Disorder continue to skyrocket, new research suggests drugs alone may not help kids long-term. June 2001 By Gunjan Sinha Dr. Lawrence Diller zips through his voice mail while waiting for his next client. He quickly finds himself wading through unnecessary details. One longtime patient lists her afternoon schedule, presumably so Diller will know when to return her call. A new patient states her name, address, and occupation—she's a lawyer—then adds what seem like trivial details. But unlike many doctors prone to hit "delete" after jotting down the phone number, Diller is all ears: In his practice, listening is the key to exorcising patients' demons. It's this notion that has flagged Diller as something of a renegade. A pediatrician and family therapist, Diller's practice is tucked between rolling hills in Walnut Creek—a wealthy San Francisco suburb— where he evaluates and treats children and adults for psychological disorders. Most people knocking on his door these days want to know if they or their children have Attention Deficit Hyperactivity Disorder, or ADHD—a behavioral malady that predominantly affects young boys. Production of one of the main drugs to treat ADHD —Ritalin—has rocketed 700 percent since 1990. And with a longer-acting version called Concerta, which eliminates some of the stigma associated with kids popping pills at school, hitting the market, experts are predicting that those numbers will soar even higher. In fact, last year prescriptions for a long-lasting formulation of a related drug called Adderall surpassed Ritalin and have increased almost fivefold since 1996. The rise, while huge, hasn't set off alarm bells among most scientists. Experts estimate the disorder afflicts 3 to 7 percent of Americans and believe that the increase has been a simple case of treatment catching up to a prevalent problem. But Diller became convinced in the early 1990s that too many people were using the medication as a quick fix for larger social and cultural problems. With dwindling school resources, bloated classrooms, and time- strapped parents, medication is becoming an easy out, Diller says—which is a dangerous situation with a drug primarily prescribed for children and whose long-term effects haven't yet been studied. Today, an estimated 3 million to 5 million American children have been diagnosed with ADHD—including as many as 200,000 ages two to four. Diller was the first to publicly raise the red flag on the growing problem of overdiagnosis in his book, Running on Ritalin, published in 1998. Yet scarcely anyone paid attention. Since then, he has continued to voice his opinions in editorials and also won a Society of Professional Journalists award for a series he wrote on Salon.com last fall. But recent negative publicity and preliminary research suggesting that medication alone doesn't help ADHD children perform better over the long term is only now dredging up more widespread concern over the soaring numbers of children on medication. Doctors diagnose ADHD based on guidelines listed in the American Psychiatric Association's "bible"—the Diagnostic and Statistical Manual of Mental Disorders (DSM). The guide divides the disorder into three types: inattentive, hyperactive/impulsive, or combined. If a child exhibits at least six symptoms from a list that includes fidgeting and excessive climbing and running about, he can be considered hyperactive. "Inattentive" children include those who fail to listen or to follow through, and have a tendency to lose things. But how impulsive, overactive, and inattentive must a child be to warrant an ADHD diagnosis? All children behave badly at times. Because the disorder has no testable biological hallmarks, such as a hormone imbalance, the diagnosis is somewhat subjective. "You get the sense that almost everyone who sees a doctor about ADHD walks out with a prescription if they want it," says Diller, who stands just under 6 feet tall, has a slender build, and wears his mottled gray hair neatly combed back, Bill Clinton-style. He speaks with so much animation and enthusiasm that his face often flushes as red as a tomato. "I don't know if I medicate less than other people," he adds, "but with a number of the kids I see whose teachers think they have ADHD, I'm able to manage without medication, using behavioral approaches both at home and at school." Diller spends a minimum of 3 hours conversing with and evaluating each child before giving his diagnosis. He also talks to a child's teachers to get a sense of the child's behavior in real-world settings. But physicians can spend as little or as much time as they see fit evaluating patients—there are no formal guidelines. One survey of Virginia physicians found that they spend an average of 1 hour and 22 minutes making a diagnosis. Manufactured by Novartis Pharmaceuticals, of Basel, Switzerland, Ritalin is the trade name for the generic chemical methylphenidate, a stimulant that's related to caffeine and cocaine. Several other stimulant-type drugs are now prescribed to treat ADHD, such as Adderall, Concerta, and Dexedrine. Side effects of these drugs include sleeplessness and appetite loss, but they usually wear off as the effects of the drug do, after a few hours. In the brain, methylphenidate interacts with dopamine —a biochemical that conveys pleasure, among other sensations. When sensory information stimulates a nerve cell, the cell shoots dopamine into the synapse between cells. Dopamine messengers the information to neighboring cells, and then the nerve cell sucks the extraneous chemical back into the cell. Ritalin slows this reuptake of dopamine (other stimulants also act on dopamine levels but in different ways). How this stifles hyperactivity and sharpens focus is still unclear. But stimulants don't just help people with ADHD; they boost almost anyone's ability to focus, which is precisely the problem. "We have a condition that is ill defined, and the main professed treatment improves everyone's ability to stick with things they find boring and difficult. And what we've got in our performance-obsessed culture is the makings of an epidemic," Diller argues. Take the Taylor family, for example. Kate and Mike Taylor (not their real names) have three kids ages 8, 11, and 13. The entire family is taking Ritalin in varying dosages. Doctors at UCLA had already diagnosed the children with ADHD; the family came to Diller seeking "reassurance." Mike is a fireman, Kate a stay-at-home mom. Seated in Diller's office, the blonde-haired, fair-eyed group seems the quintessential American family. All three kids have been homeschooled for more than a year and excel in their studies, with the two eldest currently taking classes at a community college. The 11-year-old takes Ritalin three times a day—the highest dose of the five. During the session, Diller wonders if the evening dose is necessary, but Kate seems reluctant to give it up. The child swims competitively and the drug helps her focus. Diller then explains that several studies in the 1950s showed that stimulants slightly increase endurance. Having less-than-top-level endurance, of course, is not a medical problem. Kate seems interested but nonplussed. "The middle child is the only one who has ADHD," Diller argues. "She's quite impulsive and near hyperactive off medicine." Otherwise, writes Diller in his notes, "the child scored in the superior range of intelligence" when she was attending school. Diller observes that Kate and Mike needed some help in learning how to better discipline their children. In fact, he sees discipline issues initially present in 90 percent of his ADHD families. In the Taylor family's case, he coached the parents through behavioral therapy for more than a year. For a while, the therapy moved away from helping the kids and focused on Mike and Kate's marriage. While there were some improvements, Diller recounts, the parents still felt that their children needed medication. While Ritalin has been remedying behavioral disorders in children since the 1960s, most studies followed kids for only a few weeks and were intended to test how well treatments worked in easing ADHD symptoms. The largest and longest study to date, published in 1999, lasted 14 months and found medication to be superior to behavioral therapy in alleviating ADHD symptoms. But several researchers are now reevaluating the data and are finding that medication plus behavioral therapy was more effective than medication alone. And no one has yet looked at the possibility of more subtle negative influences: Some children, for example, become hyperfocused on solitary activities rather than seeking playmates. In addition, the medication, when taken for several years, may have long-term effects on a child's self-esteem and other behavior. Diller's critics, such as Russell Barkley, a neuroscientist and leading ADHD expert at the University of Massachusetts, counter that while there may be anecdotal reports of overdiagnosis and adults and children suffering from subtle side effects, they are isolated cases. "ADHD is very well studied, valid, with a real biological basis," he asserts. "Larry's problem is that he tries to translate anecdotes into scientific data but that doesn't mean we have an epidemic. You can always find a secretary sniffing Wite-Out, but you can't pass that off as an epidemic of people sniffing liquid paper in their offices." While the debate over the disorder's epidemic status rages, some long- term data on whether the drugs are actually helping ADHD children, however, have begun to trickle in. A study by William Fankenberger and Christine Cannon at the Human Development Center at the University of Wisconsin in Eau Claire published in 1999 found that 13 ADHD children on medication performed progressively worse over 4 years on standardized tests when compared with a group of 13 normal children with similar IQs and other characteristics. Gretchen LeFever, an assistant professor of pediatrics and psychiatry at Eastern Virginia Medical School, is also comparing the educational outcomes of ADHD kids to that of their peers in elementary schools in Virginia. In preliminary findings, she found results similar to the University of Wisconsin study. While both studies are small and require further validation, "these studies also suggest that the care kids are getting in routine community settings is not the same as what's delivered through tightly controlled clinical studies that have shown medication to be effective," LeFever says. "We really need to be looking at this closely." While these studies fall short of answering questions about the long- term effects of medication on personality, they have, along with other recent events, stirred up a lot of controversy. Most notably, several lawyers led by Richard Scruggs of Pascagoula, Mississippi, have filed class action lawsuits in two states and Puerto Rico against the American Psychiatric Association and Novartis, claiming that they colluded to create a disease and later hyped the drug's benefits. Decisions were pending at press time. Experts like Barkley are bitterly critical of the negative publicity surrounding ADHD. The lawsuits are unfounded and blown out of proportion, he says. And as for Diller and others who argue that ADHD is overdiagnosed, he adds: "Larry is a medical practitioner. What we all say to him is 'show me the data.'" Diller has learned to roll with the punches. When he published his book, he knew he was sticking his neck out. But he felt he just couldn't keep silent about the "larger factors" contributing to the disorder—one of which is our culture, Diller argues. American and Canadian kids consume nearly 80 percent of all stimulants taken by children worldwide. Western Europe, while showing evidence of having a similar prevalence of ADHD, does not choose to medicate as readily, at least not yet. While Barkley says this is because Western Europe "is still locked in the stranglehold of outdated psychoanalysis that blames parents for misbehavior [as does much of the American public]," Diller finds another explanation more satisfying. "American culture is inconsistent," he argues. "We prize independence but at the same time demand conformity at school. That's a very mixed message for a vulnerable and temperamental group—that is, boys ages 4 to 14. They struggle with that message." Even Barkley, albeit reluctantly, admits that culture plays a role in America's love affair with performance pills: "The more demands placed on your population, the more you are going to unearth disorders. Take dyslexia, for instance. You don't find it until you require the population to read. The genes for the problem have always been around, they just never posed a problem until the culture began to make demands on that trait." "We're a fix-it culture," Diller continues. "I play a role in this. I medicate because I'm not going change school systems or cultural attitudes. But if I don't challenge the factors and values that I think are dangerous and harmful to children, then I become complicitous. It comes down to, What kind of society do we want for our kids?"
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