Little Yellow Pill

A synonym for Valium®, popularised by the song ‘Mother’s Little Helper,’ written by Mick Jagger and Keith Richards
References in periodicals archive ?
Diarrid is billed as "the little yellow pill that stops diarrhea in its tracks.
That's the logical conclusion drawn from the phenomenal reaction women are having to Libutol, "The Little Yellow Pill That Makes Life Better" from Blackett Pharmacal[TM].
Hard hitting, poignant and hilarious, the amazing story of how one man''s life was dramatically changed by some little yellow pills.
Back in the '80s, when Pac-Man roamed around a maze chomping little yellow pills, he was accompanied by a jaunty electronic score of blips and bloops.