Pushing Prozac (cont.)
Stephen Crystal, PhD, a Rutgers researcher who studies prescription trends, calls it a "massive uncontrolled experiment," in which doctors are handing their patients prescriptions when they haven't even been diagnosed with a mental disorder in the first place. Equally troubling, the ABC News survey found that nearly half of people on the new antidepressants have taken the drugs for a year or more, even though these drugs haven't been tested for long-term use.
Leading the dissent is Harvard psychiatrist Joseph Glenmullen, MD, author of Prozac Backlash. Glenmullen argues that as many as 75% of patients are on antidepressants for mild -- even trivial -- conditions. For many of these people, he says, the risk-benefit ratio of taking antidepressants is simply unacceptable.
For example, some studies have shown that Prozac and its cousins cause sexual dysfunction in up to 60% of users, though the drug's manufacturer, Eli Lilly and Co., says the rate is less than half that. Glenmullen points to a Spanish study published in the Journal of Sex and Marital Therapy in 1997 as one of the best examples: It examined the effects of Prozac, Paxil, Zoloft, and Luvox in 344 patients and found that 58% experienced sexual dysfunction. Weight gain and tremors are other leading side effects.
Carla is one patient who has struggled to find an antidepressant with few side effects. After her family doctor first prescribed Paxil five years ago, Carla found herself numb to everything around her. "I sure wasn't depressed anymore," she says. "I wasn't sad, I wasn't happy, I wasn't anything." Sex with her husband lost all its appeal. "It's kind of hard to have sex when you have no physical feelings and no emotional feelings."
Alarmed, she went back to her doctor. She next tried Prozac -- that had problems too -- and finally settled on 50 milligrams of Zoloft each day. Never once has she gone to a psychiatrist or psychologist during these five years. Such expense seemed unnecessary; after all, she is taking antidepressants. Lately, though, she wonders. She's starting to feel depressed again, and her once-a-day Zoloft doesn't seem to help much. "My biggest frustration is that I wish I could enjoy sex more," Carla says.
Today, some psychiatrists question whether patients like Carla really need to take antidepressants for years, or whether a dummy pill or therapy alone might work just as well. Several recent studies indicate that many of the beneficial effects attributed to antidepressants can be explained by the "placebo effect" -- the improvement many people experience when they believe they're taking medicine.
In the April issue of the journal Archives of General Psychiatry, researchers analyzed studies of seven new antidepressants, using the Food and Drug Administration's vast database. Their conclusion? The rates of suicide and suicide attempts were just as high among patients treated with antidepressants as for those who took placebos.
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