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Trade-named Librium by New Jersey's Roche Laboratories, it is technically methamino-diazepoxide, a synthetic chemical unrelated to previous ataractic drugs.

Others cannot tolerate it if they have taken antihistamine or ataractic drugs.

While the open door is no cure-all," says Dr. Hunt, "it is the most important thing that has happened in treatment of the mentally ill in our lifetimes�not even excepting the ataractic drugs.