IPA: /ˌæn.tiˈtɒk.sɪk/
KK: /ˌæntiˈtɑksɪk/
Describing something that works against or neutralizes poisons or toxins in the body.
The doctor administered an antitoxic serum to treat the patient's poisoning.
Antitoxic → It is formed from "anti-" (meaning against) and "toxic" (from Greek "toxikon", meaning poison). The word describes something that works against poison or toxins.
Think of 'against' ('anti-') something that is 'poison' ('toxic') — that's why antitoxic means something that counteracts poison.