Acid is LSD a hallucinogenic,
the Alice in Wonderland references are based not on acid but Ether, and mushrooms
the later explanations were from Jefferson Starship an alternative rock band from San Francisco, their song White Rabbit said
"One pill makes you larger,
and one pill makes you small,
the ones that mother gives you
don't do anything at all...
Remember what the Dormouse said,
feed your head.
These days I don't know if you could trust the party drugs, they get mixed by idiots who don't know why they're do it.