SALEM, OR -- Edible marijuana products go on sale in Oregon Thursday, but state health officials warn there are dangers associated with eating marijuana-laced baked goods and candy. Edible products can contain up to 15 milligrams of THC and will be sold at medical marijuana stores. 

Smoking pot has an almost immediate effect, but edibles can take up to four hours to reach their peak. Health officials warn adult users to take less than 15 mg and wait at least 90 minutes before consuming more. Products should also be kept locked up because they can be very dangerous for children and pets. If a child consumes marijuana, they urge you to call the Oregon Poison Center. If the effects are severe, call 911.