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Meaning of isotretinoin

i•so•tre•tin•o•in

Pronunciation: (ī"sō-tri-tin'ō-in, -oin), [key]
— n. Pharm.
  1. a yellowish-orange to orange crystalline powder, CHO, used in the treatment of cystic acne.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.