Poison help?

[deza.livejournal.com]

I am looking for a poison that fits a rather stiff set of requirements.

1. Onset time of 45 minutes or less
2. Easily available around an average household
3. Won't be detected in a chocolate-fudge brownie
4. Produces minimal or no vomiting

I'd originally planned to use antifreeze, but from what I've found so far the onset time is around 2-3 hours, and I need to kill my character a little quicker than that. I'd prefer not to use arsenic or cyanide, as they both cause large amounts of vomiting and my MC really doesn't have time to clean up that much mess.

Any suggestions?

Comments

[deza.livejournal.com]

Hee, I'll read through the whole site when I get home. Thanks!