absinthe isn't the psychedelic drug some people seem to think. It's alcohol. If you generally drink when you roll, it would be the same effect, only it would take a lot less liquid to get you sideways.
I read a couple books about absinthe, and apparently absinthe became so popular in France that wine sales dropped and the wine industry of that time put out a negative ad campaign against absinthe. That is where all the mysterious green fairy stories come from, according to what I read.
Although absinthe does have wormwood, an herb. I guess that substance can cause head changes but not significantly. I have had a good glass of absinthe while rolling. The green was delightful, the taste was powerful, and I got the same buzz that I would have from Vodka or any really strong alcohol. It was fun. I didn't keep drinking. I'm old enough to not have hang overs anymore. I stop drinking as soon as I feel that head change.
I hope this helps?