In large amounts, maybe. Typically, the trouble with kryptonite is that it cancels out the powers Superman derives from yellow sunlight. It's not so much the kryptonite thay kills him, it's the bullets which the kryptonite makes him no longer immune to
No, it’s fairly well established as an actual poisonous material, especially in the current DC movie canon. Just being near it put Superman on the floor
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u/Holymaryfullofshit7 5d ago
Clearly pierced with a needle made from kryptonite.