How much listerine does it take to get drunk?

i was over at my friend dave's house and his dad was drinking listerine so i asked him isnt that just for your breath but he says it can get you drunk too. so me and dave have been drinking listerine all day and we each finished about half a bottle but we're still not drunk yet. how much does it take?
Update: IM GOING O DIE NO NO NO !!!!!!!!!
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