Hi . I can't personally speak to the impact of cannabis in its different forms on lung cancer. I can say the research on cannabinoids and lung cancer to this point has been mixed. This study found that "THC and CBD inhibited the proliferation and expression of EGFR in the lung cancer cells studied:" https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0228909. There are current clinical trials looking into the impact of cannabinoids on lung cancer treatment. It is important to speak with one's doctor before adding anything to a treatment regimen and the doctors should be able to provide further guidance. Wishing you the best. Richard (LungCancer.net Team)