The Canadian parents' perception about their kids using drugs has been brought out by a survey released by the Canadian Centre for Substance Abuse on Monday.

The survey found that about 70% of the parents of children aged 12 to 17 in Canada thought that their child never accessed to drugs.

But, the use of marijuana in the previous year was admitted by nearly one-third of the teens with ages 15-17 years old and around 50% of 18 to 19 years old, as told by Michel Perron, CEO of the organization. The matter of concern was apart from other substances, children were taking prescription drugs such as Tylenol 3, Percocet or OxyContin.

He said, "What we were surprised by was the gap between perceptions and reality. Far more kids are experimenting with drugs than parents think". He further added that but the parents needed not to develop fear from the information, in fact they should add this in the talks they had been having with their children.

Perron advised parents to keep a check on their medicine cabinets and to remove any unwanted drugs from it.

In a previous study, it was found that 20% of the children aged 7-12 were taking prescription drugs and 75% of them said that they discovered drugs from their home only.