RIFAMYCIN

Yes, RIFAMYCIN is a Scrabble word!

Letter values in Scrabble US: R 1, I 1, F 4, A 1, M 3, Y 4, C 3, I 1, N 1.R 1 · I 1 · F 4 · A 1 · M 3 · Y 4 · C 3 · I 1 · N 1

Is it a valid word?

• Scrabble US: valid, 19 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 19 points
• Scrabble UK: valid, 19 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 19 points
• Words with Friends: not a valid word. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeNot a valid word