Understanding Vaping & e-Cigarettes: Q&A with Dr. Andrea King and Dr. Renea Jablonski

Video Highlights

Is vaping THC safe?

Dr. King: I think that vaping THC, it's safe to say that is significantly less safe than using some of these nicotine containing products. When you look at the series of patients that the CDC has reported on that have developed this severe lung injury in association with vaping, the majority of those people used a THC containing device. And interestingly, there was a subset who said they only used nicotine containing devices, but still had measurable THC, either in their systems or in the products that were obtained by the CDC for testing after the fact.

Which I think underlies another point that I wanted to make, which is that the purchase of a lot of these products from black market or informal sources has been associated with development of this lung injury. I can't say strongly enough that is something that everyone out there should avoid doing.

What does vaping do to the lungs?

Dr. Jablonski: There's been a very wide spectrum of types of lung injury that we've seen in response to use of these vaping products. And what we think is that the inhalation of some either toxic substance or substances causes irritation and inflammation in the lungs that leads to these lung injuries that we're seeing. One particular substance that's been discussed a lot in the media, particularly in the past few months, has been this vitamin E acetate, which is part of the carrier that is used to dissolve the THC and particularly used in THC containing products. And the inhalation of that causes stress and injury to the lungs themselves, leading to this severe lung disease.

Are there other additives in vaping products that can affect your health?

Dr. Jablonski: We know that there are carcinogens in these products. And a lot of products contain flavors as well. And those flavors can be various compounds that are used to impart that on the vape liquid. One in particular that causes concern for pulmonologists is diacetyl, which has been used in other flavorings like popcorn butter, and it's been associated with the development of a long term chronic lung disease called popcorn workers' lung.

Andrea King, PhD

Andrea King, PhD

Andrea King, PhD, is a psychiatrist who focuses on tobacco and alcohol addiction, assessment and treatment of substance use disorders, and cancer prevention and control. 

Read Dr. King's profile

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