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CHICAGO &mdash; Suicide rates for preteens and teenagers increased sharply after the Food and Drug Administration slapped a &ldquo;black box&rdquo; warning on anti-depressants and doctors started writing fewer prescriptions for young people, according to federal data released Thursday.
The FDA&rsquo;s warning, publicly debated in 2003 and enacted in 2004, highlighted a link between anti-depressant use by young people and suicidal thoughts and behavior. But now some experts are asking whether the message backfired.
In 2004, the number of 10- to 24-year-olds taking their own lives rose by 8 percent, the Centers for Disease Control and Prevention reported. Over the previous 14 years, suicide rates had fallen 28.5 percent in this age group.
While the numbers do not prove a connection between suicide and the drop in anti-depressant use, several experts suggested Thursday that the FDA re-evaluate its warnings on the medications in light of the new CDC report.
&ldquo;It&rsquo;s time for the agency&rsquo;s warnings to be modified,&rdquo; said Dr. David Schaffer, a leading expert on teen suicide and chief of child and adolescent psychiatry at Columbia University Medical Center in New York City.
Thomas Laughren, director of the FDA&rsquo;s division of psychiatry products, acknowledged the suicide numbers are &ldquo;clearly a dilemma for us&rdquo; and &ldquo;not what you would want to see&rdquo; but cautioned that firm conclusions should not be drawn from a one-year increase.
The new numbers documented a particularly startling rise in the suicide rate for girls, with self-inflicted deaths rising 41 percent among 10- to 19-year-olds. Suicides for boys in the age group climbed 8.5 percent, by comparison.
Ileana Arias, director of the CDC&rsquo;s Center for Injury Prevention and Control, called the report&rsquo;s findings &ldquo;sobering&rdquo; and said she was troubled that the increase was concentrated almost entirely among pre-teens and teenagers. Rates were relatively flat for adults 20 to 24 years old.
The FDA was prompted to issue warnings about anti-depressants by two dozen studies showing that young people were twice as likely to consider killing themselves or start taking steps to do so after taking the drugs. None of the subjects in the studies actually committed suicide, and the risks were relatively small (4 percent versus 2 percent), but the agency decided it had to act.
In 2003 and 2004, the FDA issued public health advisories warning that anti-depressants appeared to increase suicidal thoughts and behavior among teens. Late in 2004, it ordered drug-makers to place a black-box warning -- the agency&rsquo;s strongest signal of serious risk -- on the medications&rsquo; labels.
The move contributed to a steep decline in anti-depressant prescriptions for teens, as pediatricians and family doctors re-evaluated their risks and benefits. Various firms tracking drug use report declines of 25 percent or more since 2003.
On Wednesday, University of Illinois at Chicago psychiatry professor Robert Gibbons published a paper in the American Journal of Psychiatry that documented the close correlation between declining use of the anti-depressants known as SSRIs and rising suicide rates among young people up to age 19.
It concludes that if the FDA&rsquo;s warnings had been correct, &ldquo;we would have expected to see decreases in the suicide rate during the period of declining SSRI prescription rates.&rdquo; Instead, &ldquo;we saw an increase.&rdquo;
The FDA&rsquo;s black box warning has had a &ldquo;horrible and unintended effect&rdquo; and should be withdrawn, Gibbons said Thursday. The benefits of anti-depressants far exceed the risks, he said.

Teen Suicide Rates Spike After Fda Labels Medication