Is vaping nicotine considered a violation of the fifth precept?

I understand that vaping nicotine is not a particularly healthy habit and is addictive. However, I’ve used it to quit smoking cigarettes and it has resulted in me abandoning them entirely, which I consider to be a huge milestone. I also have a significant mental illness that I am very effectively managing with the help of medication and therapy. But I have read studies which suggest that nicotine can offer some psychological benefits for people with psychotic conditions like mine (I can offer a source for anyone interested), and I have found this to be true in my case. Does vaping nicotine break the fifth precept?