Friday, April 11, 2008

FDA looks at link between medications, depression

Federal regulators warn that an array of drugs could play a role in spurring thoughts of suicide or other psychiatric symptoms.

As symptoms of depression go, there is none much clearer than having thoughts of suicide.

But a spate of recent announcements from federal health officials suggests a surprising new interpretation of suicidal fantasies and the depression they are thought to signal: Sometimes, sadness, anxiety and self-destructive thoughts are not symptoms but side effects -- of medicine.

In this year alone, federal regulators have warned that a surprising array of drugs could play a role in spurring thoughts of self-destruction. Medicines that treat epilepsy, asthma and influenza are now under suspicion, as is one that helps smokers kick the tobacco habit.

The FDA stresses that it has established no direct causal link between these medications and suicidal thoughts in patients taking them. But in all the cases, regulators acknowledge they had one of two indicators of potential trouble.

In some cases, a review of a drug's early clinical trials turned up increased rates of suicidal thinking among subjects taking the medicine. In others, the tip-off came when the FDA observed an uptick of reports that patients taking a medication for some other condition developed symptoms of depression.

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