Samuel Grossman, BS Pharm, Pharm.D, CDE Answered 4/24/2015

Marijuana, as an illicit drug, may come in different concentrations based on the batch that the leaves come from and is not closely regulated by the FDA. Marijuana, because of its status, has not been studied fully and may have the potential to affect different organs in the body. The use of marijuana can increase the appetite of a patient with diabetes and can worsen blood glucose levels when carbohydrates are consumed in large portions. Marijuana may have the potential to affect heart rate either directly or indirectly, but there are no conclusive studies that have shown a specific effect on the heart and blood pressure. I would recommend to discuss this issue further with your provider to prevent hazardous adverse effects.