04/16/2014 12:56 EDT | Updated 06/16/2014 05:59 EDT

Christine Allen pleads guilty to poisoning children

Christine Allen, the Kitchener, Ont., woman charged with allegedly poisoning an an adult and eight children has pleaded guilty to four counts of administering noxious substance and negligence causing bodily harm on Wednesday. 

Allen, in her early thirties, ran an unlicensed daycare from a home in the Pioneer Park area of Kitchener from 2009 to 2011, according to police.

She appeared in court on Wednesday in a green sweat suit, with her head down.

Allen was accused of feeding the children tetrahydrozoline, a drug found in over-the-counter eye care products that can cause serious illness if ingested. 

Court heard that one child who was given the noxious substance was a newborn at the time and is now showing developmental challenges.

Allen faces six years in prison, less time served.