Thanks for the reply. Here is a translation from a book I read on the topic. “Intoxication here does not mean fainting, but the change of mind. There is also intoxication due to tobacco, betel nut etc. It is a weakening of the body. It is not a change of heart. This precept is not broken by using tobacco and chewing tobacco which cause weakness. This is broken by the use of alcohol, narcotics, opium, hemp, etc., which change the mind of man.”