Does the fifth precept refer exclusively to chemical stimulants?

The fifth precept is > I undertake the training rule to abstain from fermented drink that > causes heedlessness but I have read interpretations that translate it as > I undertake to abstain from intoxicants Are there any references in the Buddhist scriptures about the fifth precept having a broader interpretations that refer to intoxicants of different forms - not just chemical stimulants? I'm interested in views of any schools as I imagine the interpretation of the precept may be different between them. I'm also interested in any references to more modern teachers who take this broader approach if anyone knows of them.