LAST year, more active-duty soldiers committed suicide than died in battle. This fact has been reported so often that it has almost lost its jolting force. Almost.

Worse, according to data not reported on until now, the military evidently responded to stress that afflicts soldiers in Iraq and Afghanistan primarily by drugging soldiers on the front lines. Data that I have obtained directly from Tricare Management Activity, the division of the Department of Defense that manages health care services for the military, shows that there has been a giant, 682 percent increase in the number of psychoactive drugs — antipsychotics, sedatives, stimulants and mood stabilizers — prescribed to our troops between 2005 and 2011. That’s right. A nearly 700 percent increase — despite a steady reduction in combat troop levels since 2008.

The prescribing trends suggest that the military often uses medications in ways that are not approved by the Food and Drug Administration and do not comport with the usual psychiatric standards of practice.

The military tests prospective enlistees with an eye toward screening out those with serious psychiatric disorders. So you would expect that the use of these drugs in the military would be minimal — and certainly less than in the civilian population. But the opposite is true: prescriptions written for antipsychotic drugs for active-duty troops increased 1,083 percent from 2005 to 2011; the number of antipsychotic drug prescriptions in the civilian population increased just 22 percent from 2005 to 2011, according to IMS Health, an independent medical data company.