the potion is permanent and irreversible, there is only one in the game, and it is deviously programmed to autosave when you drink it

IIRC no other potion or item in the game automatically triggers an autosave, and I do believe they intentionally did this to "prank" the player

I tried it because I was curious about what my character would look like genderswapped, planning to reload immediately afterward, realizing too late that my character would be stuck like that the rest of the game

I probably wouldn't have minded as much if the result was nicer, but I really didn't like the way it looked, basically the same bearded muscle giant my character was before, but now with improbably large breasts, which isn't quite my aesthetic

I'm a cis dude and still honestly felt upset about this, so I can't imagine how a trans player might have felt about having their character irreversibly "detransitioned" just because they were curious about what the character might look like for a minute

and it's late-game content too, so if the swap makes you want to abandon the character, you're throwing out hours of investment in progressing through the bulk of the game

you fucked up, Peter