vitamin B₂ or riboflavin.

Synonym of pyridoxine

pantothenic acid

thiamine

biotin

folic acid

(slang) The drug sildenafil citrate, used to treat erectile dysfunction.

The L-enantiomer of ascorbic acid, a water-soluble nutrient essential for life, synthesized by most animals and plants but not humans, although used in our bodies for many purposes. It is plentiful in citrus fruits and many vegetables, and a deficiency causes scurvy.

(slang, humorous) Ritalin, an amphetamine-like psychopharmaceutical, prescribed for ADHD.

Synonym of retinoic acid