I know that anytime I break a bottle neck popping off the cap a little too vigorously, I just go ahead and pour the whole thing out as sad as it is sometimes. If you take the following for fact, you would have to have to use a partical/maybe micron filter to ensure the glass was gone. I hate to say it, but I would probably dump it.
Take this for what it's worth... It's source is this:
Glass shards? - Yahoo! Answers
"You need to go to a doctor pronto. Glass shards can be extremely hazardous.
Unlike a thorn, which is forced out of your body by the natural processes (such as by forming a sore which weakens the skin, then the pus forces the object out of your skin), glass works oftentimes in the opposite manner.
What hapens is that if they are microscopic or small enough to not see with your eyes, the shards can work their way deeper into your skin. Glass does not present the same foreign intrusion signals to your body's detection system, because it is glass. Therefore, two things occur, but not absolutely: a) the shards can work deeper, and b) the body will then try to heal itself around the shards. And that causes a third problem c) it is possible but not guaranteed that the tiny glass shards can work their way into a blood vessel and float in your blood to cause more problems elsewhere.
I say possible, because I do not have any knowledge of this ever happening as a skin penetration, and you do not say what part of your body this injury happened to. But I do know that glass shards ingested through the mouth can do just that, and that has been documented in cases such as in car crashes.
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