MARIJUANA (Cannabis) Although Marijuana was one of the most widely used illegal drugs in Canada, there was only limited research on the prevalence of Marijuana use, and its effects before it became legalized in Canada. The legalization of Marijuana served to reinforce the belief that there was no health risks associated with using Marijuana. Although medical research has now identified a number of health risks with the use of Cannabis, knowledge about the potential risks of use during pregnancy remain largely unknown by the general public. This article addresses the effects of Marijuana on the fetus, infants, and childhood development.
PREVELANCE OF USE: Marijuana is the most common psychoactive substance used by women of child-bearing age, and the most commonly used drug among pregnant women. On average THC levels are 7 times higher, than in the past, increasing the harmful effects of Marijuana.
MYTH: It is a commonly held belief that the Placenta which provides nutrients and oxygen to the fetus through the mother’s bloodstream does not cross the placenta.
FACT: THC rapidly crosses the placenta. Also Marijuana can stay in the mother’s body for weeks, depending on the strength, how often it is used, and the mother’s metabolism.