Yes, CLOMIPHENE is a Scrabble word!

Letter values in Scrabble US: C 3, L 1, O 1, M 3, I 1, P 3, H 4, E 1, N 1, E 1.

Is it a valid word?

CLOMIPHENE is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a fertility drug (trade name Clomid) that is used to stimulate ovulation and that has been associated with multiple births

Also: clomiphene citrate.

Not playable in Scrabble US: CLOMID.