Monoamine oxidase inhibitory activity of flavoured e-cigarette liquids https://www.sciencedirect.com/science/article/abs/pii/S0161813X19301007 https://www.scien

Monoamine oxidase inhibitory activity of flavoured e-cigarette liquids https://www.sciencedirect.com/science/article/abs/pii/S0161813X19301007 https://www.sciencedirect.com/science/article/abs/pii/S01618... Reinforcement and MAO-A inhibition in heated tobacco products: flavor and brand variations https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2025.1515519/full https://www.frontiersin.org/journals/psychiatry/articles/10.... Comparison of monoamine oxidase inhibition by cigarettes and modified risk tobacco products https://www.sciencedirect.com/science/article/pii/S2214750019304925 https://www.sciencedirect.com/science/article/pii/S221475001... There is of course variance depending on the exact flavorants used. For example, menthol and mint flavors don’t inhibit MAO, their activity is towards kappa-opioid agonism (induction of dysphoria).