tobacco use health risks risks: MedlinePlus Medical Encyclopedia Image Tobacco use, whether through cigarettes,

Your healthcare provider will not give you FEMLYV if you have ever had blood clots or are at a high risk for stroke, heart attack or other heart problems or abnormalities, breast cancer, liver disease, including liver tumors, take any Hepatitis C drug combination containing ombitasvir, paritaprevir, ritonavir, with or without dasabuvir, which may increase levels of the liver enzyme alanine aminotransferase (ALT) in the blood, or have any abnormal bleeding from the vagina

BC is particularly explicit about these air intake restrictions

Chemical degradation / rearrangements : Especially in aging, slow reactions convert precursors into volatile compounds

Turn your vape off when packing it