antidepressant drug

NOUN
19 LETTERS · STARTS WITH A

antidepressant drug is a valid 19-letter word worth 23 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1N1T1I1D2E1P3R1E1S1S1A1N1T1D2R1U1G2
1 + 1 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 2 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does antidepressant drug mean?