Many People Taking Anti-depressants Discover They Cannot Quit

Posted on Jun 21, 2018 in Chronic Disease, Health & Wellness, Vices

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Victoria Toline needed nine months to taper off Zoloft. “I had to drop out of school,” she said. “My life’s been on hold.”CreditRuth Fremson/The New York Times.

Victoria Toline would hunch over the kitchen table, steady her hands and draw a bead of liquid from a vial with a small dropper. It was a delicate operation that had become a daily routine — extracting ever tinier doses of the antidepressant she had taken for three years, on and off, and was desperately trying to quit.

“Basically that’s all I have been doing — dealing with the dizziness, the confusion, the fatigue, all the symptoms of withdrawal,” said Ms. Toline, 27, of Tacoma, Wash. It took nine months to wean herself from the drug, Zoloft, by taking increasingly smaller doses.

“I couldn’t finish my college degree,” she said. “Only now am I feeling well enough to try to re-enter society and go back to work.”

Long-term use of antidepressants is surging in the United States, according to a new analysis of federal data by The New York Times. Some 15.5 million Americans have been taking the medications for at least five years. The rate has almost doubled since 2010, and more than tripled since 2000.

Nearly 25 million adults, like Ms. Toline, have been on antidepressants for at least two years, a 60 percent increase since 2010.

The drugs have helped millions of people ease depression and anxiety, and are widely regarded as milestones in psychiatric treatment. Many, perhaps most, people stop the medications without significant trouble. But the rise in longtime use is also the result of an unanticipated and growing problem: Many who try to quit say they cannot because of withdrawal symptoms they were never warned about.

Some scientists long ago anticipated that a few patients might experience withdrawal symptoms if they tried to stop — they called it “discontinuation syndrome.” Yet withdrawal has never been a focus of drug makers or government regulators, who felt antidepressants could not be addictive and did far more good than harm.

The drugs initially were approved for short-term use, following studies typically lasting about two months. Even today, there is little data about their effects on people taking them for years, although there are now millions of such users.

Expanding use of antidepressants is not just an issue in the United States. Across much of the developed world, long-term prescriptions are on the rise. Prescription rates have doubled over the past decade in Britain, where health officials in January began a nationwide review of prescription drug dependence and withdrawal.

In New Zealand, where prescriptions are also at historic highs, a survey of long-term users found that withdrawal was the most common complaint, cited by three-quarters of long-term users.

Yet the medical profession has no good answer for people struggling to stop taking the drugs — no scientifically backed guidelines, no means to determine who’s at highest risk, no way to tailor appropriate strategies to individuals.

“Some people are essentially being parked on these drugs for convenience’s sake because it’s difficult to tackle the issue of taking them off,” said Dr. Anthony Kendrick, a professor of primary care at the University of Southampton in Britain.

With government funding, he is developing online and telephone support to help practitioners and patients. “Should we really be putting so many people on antidepressants long-term when we don’t know if it’s good for them, or whether they’ll be able to come off?” he said.

Antidepressants were originally considered a short-term treatment for episodic mood problems, to be taken for six to nine months: enough to get through a crisis, and no more.

Later studies suggested that “maintenance therapy” — longer-term and often open-ended use — could prevent a return of depression in some patients, but those trials very rarely lasted more than two years.

Once a drug is approved, physicians in the United States have wide latitude to prescribe it as they see fit. The lack of long-term data did not prevent doctors from placing tens of millions of Americans on antidepressants indefinitely.

“Most people are put on these drugs in primary care, after a very brief visit and without clear symptoms of clinical depression,” said Dr. Allen Frances, a professor emeritus of psychiatry at Duke University. “Usually there’s improvement, and often it’s based on the passage of time or placebo effect.”

“But the patient and doctor don’t know this and give the antidepressant credit it doesn’t deserve. Both are reluctant to stop what appears to be a winner, and the useless prescription may be continued for years — or a lifetime.”

The Times analyzed data gathered since 1999 as part of the National Health and Nutrition Examination Survey. Over all, more than 34.4 million adults took antidepressants in 2013-4, up from 13.4 million in the 1999-2000 survey.

Adults over 45, women and whites are more likely to take antidepressants than younger adults, men and minorities. But usage is increasing in older adults across the demographic spectrum.

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