In a forthcoming book The Boy in 7 Billion, Callie Blackwell claims that cannabis oil, which she had started giving her son Deryn to relieve his symptoms during a bone marrow transplant for two cancers, actually saved his life when the bone marrow transplant appeared to be failing. Unfortunately, her story appears to be another testimonial that confuses correlation with causation.
When I first started writing about the claims made for medical marijuana and the cannabis oil derived from it, it didn’t take long for me to characterize medical claims for cannabis as the “new herbalism,” as opposed to pharmacognosy, the branch of pharmacology devoted to the study of natural products. The reason is simple. Although […]