[quote=@ImportantNobody]
<Snipped quote by Alphakoka>

It would be hard to get herself poisoned that much without dying first.
[/quote]

She's a tough girl. After all, the more poison you ingest. The quicker your resistance to it builds. It would get to the point that instead of a few drops in her drink, to 90% of the glass needing to be poison to achieve the same effect.