Yes, FLUOXETINE is a Scrabble word!

Letter values in Scrabble US: F 4, L 1, U 1, O 1, X 8, E 1, T 1, I 1, N 1, E 1.

Is it a valid word?

FLUOXETINE is a valid word in the official Scrabble dictionary (US) and the UK Scrabble Dictionary, but not in Words with Friends (ENABLE).

a selective-serotonin reuptake inhibitor commonly prescribed as an antidepressant (trade names Prozac or Sarafem); it is thought to work by increasing the activity of serotonin in the brain

Also: fluoxetine hydrocholoride.

Not playable in Scrabble US: PROZAC, SARAFEM.