Meanings
- humorousslanguncountableRitalin, an amphetamine-like psychopharmaceutical, prescribed for ADHD.
Cite this entry
vitamin R. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/vitamin%20R
“vitamin R.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/vitamin%20R. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “vitamin R,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/vitamin%20R.
Source: vitamin R on Wiktionary, CC BY-SA 4.0.