A Canadian pharmacy employee reportedly handed out bipolar medication instead of candy to trick-or-treaters.
The incident occurred when a woman accidentally dropped her son's prescription of quetiapine and divalpproex sodium — used to treat schizophrenia and psychological disorders — as she left the pharmacy in Beauport, Canada, reports the New York Post.
Another customer took the seven individually wrapped pills and put them next to the candy basket on the counter.
“So — unfortunately — we don’t know how — an employee just mixed it with the candy by accident and distributed it to the kids,” Quebec City police spokeswoman Constable Melissa Cliche told the Daily Star.
Authorities told parents the drugs posed no danger, although they come with side effects such as suicidal thoughts, tremors and nausea.
Bipolar disorder affects approximately 2.6 percent, or 5 million, of the adult population in the U.S., according to the Treatment Advocacy Center.
The World Health Organization estimates the global pharmaceuticals market is worth $300 billion a year and expects the figure to increase over time.