Ambien

Four broke off Ambien usage after experiencing impaired concentration, continuing or aggravated depression, and manic reaction.

A brief primer on the drug: the world got to know Ambien when it was first introduced in 1992.

The association between Ambien and crime also stems from the correlation between insomnia and depression, she said.

According to investigators, he may have used Ambien before the shooting spree.

“His behavior does not sound like the type of behavior described in Ambien-related events,” said Paradis.