[_bohm]

In my experience, alcohol has no effect if taken mid-trip. Usually if I'm tripping I won't even notice the effects of alcohol at all; YMMV.

[quickthrowman]

Agreed, and this goes for other substances too.

I took a few hundred or so micrograms a couple weeks ago. I did a dab weighing about .15g during the strong part, and I didn’t notice any perceptual shift at all.