Using cannabis can affect coordination and mental awareness, it could affect your ability to drive or engage in potentially hazardous activities. We recommend that you wait 4 – 8 hours after cannabis use before operating any equipment. If you are pregnant or breastfeeding you should not use cannabis. Our nurses are addressing specific aspects of a patient’s medical care and are in no way establishing themselves as the primary care provider. Semi-annual evaluations are recommended as during an annual period, changes may occur in your health and your ability to use cannabis.