artery model

I recently came across a few articles claiming that smoking cannabis can cause vascular damage and necrosis or “death” of surrounding tissues.(1)  I have been practicing Internal Medicine for 42 years, with a specialty in cannabis medicine for the last 13 years, during which time I have never seen evidence of this.


As I read through the article (linked below,) it became clear that all of the patients participating in the study were also regular tobacco users. In fact, of the 10 out of 10 patients studied, all smoked an average of one pack (20 cigarettes) daily.


Tobacco is a well-described, proven cause of arterial damage, therefore it is impossible to determine whether the cause of the damage was due to the tobacco, or the cannabis.(2)  In truth, I have seen a number of cases of vascular damage from tobacco (never from cannabis as I mentioned) so it stands to reason, and is likely, that the damage in these patients was actually caused by the cigarettes.


When tobacco is a factor, a study to determine whether cannabis has a damaging effect on arteries is rendered useless, and belongs in the same trashcan as the myriad of other cannabis articles missing critical data. In this article, the conclusions simply make no sense.


As I was compiling my notes for this blog, I searched for additional articles on this specific topic. I found another in which the authors had doubt as to whether the initial etiology was cigarettes or cannabis, however they were using cannabis to treat the vascular damage.(3)


As others are now suggesting cannabis as treatment, I stand by my conviction: it is still safe to use medical cannabis.







Allan Frankel, MD Dr Allan Frankel is one of the few physicians in the US who truly understands Cannabis as a medicine. All treatments suggested have been well studied. Every patient seen by Dr Frankel is given a personally created Treatment Plan created with the patient's specific issues defined. Plant medicine requires "tuning" of the dosing. Dr Frankel works with his patients thru a messaging portal. The use of this portal, allows quick and simple follow up contact with Dr Frankel. Patients are not charged for these messages, as this is how Dr Frankel has learned what he has learned. Follow up appointments in person or by phone/video are also available when needed

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