anticonvulsant drug

NOUN
19 LETTERS · STARTS WITH A

anticonvulsant drug is a valid 19-letter word worth 25 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1N1T1I1C3O1N1V4U1L1S1A1N1T1D2R1U1G2
1 + 1 + 1 + 1 + 3 + 1 + 1 + 4 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 2 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does anticonvulsant drug mean?