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Serving rule
(lemmy.one)
Alt text: "I just realised the lid on medicine bottles is a serving size." Don't do that obviously, unless your goal is to meet the hatman in the ER.
Speedrunning your way to Benadryl spiders
The Xanax will knock you out to the point of not seeing spiders anymore.
Xanax doesn't have any anti-cholerigenic properties so you wouldn't see any Benedryl spiders. That much xanax would be more comparable to the weird visual effects liquor where it can definitely make you see some weird shit, but it would be more like a false sleepwalk than an anti-histamine trip.
The ACTUAL way to speedrun the spiders is Ambien and Doxylamine.