Effects - Are byproducts in "rotgut" booze pharmacologicaly active?

[bcubed]

So, lizard was put off recently by $4/Gal gasoline, and wanted to see if he could beat the cost with fuel ethanol (answer: break-even if SWIY's time is worth < $0.015/hr.) He fermented and distilled feed-grade molasses (what they feed to livestock).

As this was intended as a fuel, he collected spirits well past the point one might stop if desiring a potable liquid (he did, however, throw out the methanol-rich "foreshots.") As a result, the beverage tasted HORRIBLE and had comparatively more higher alcohols and fuesil oils (not really sure what all that entails).

Anyhoo, one night lizard braves this concoction, downing ~10oz/283ml of the stuff (75% ABV). In addition to getting quite drunk (duh), he noticed the following, atypical effects: first, he got pronounced "trails," similar to psychedelics. Also, he seemed simultaneously physically clumsy, yet mentally less impaired, reminding him of Hunter S. Thompson's descriptions of ether. It should be noted that lizard hadn't taken any other drugs within, say, 5 days of this.

So, has anyone heard of the "off" products being pharmacologically active? I'm aware that isopropanol has CNS depressant qualities like ethanol (but then, that's not really the same as saying it "feels like" ethanol, is it?) Somewhere I seem to recall hearing that there were active chemicals in fuesel oils, but I cannot seem to find it again.

(Incidentally, the downside of mildly different effects was a HELLACIOUS hangover...very much not recemmended! Also, this is...effectively...ethanol, with at most 0.5% isopropanol byproducts, NOT the same as chugging IPA!)