poisons...

http://en.wikipedia.org/wiki/Toxin

http://www.cfsan.fda.gov/~mow/chap40.html

http://mlmgorilla.com/toxins/

I googled "toxins" instead of poisons. These were just a few that I found.

Good luck. And don't make me an accessory before the fact!

sunna7kore said:

Can anybody recommend a decent internet source for poisons and their effects?

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Yup. right here.
What sort are you looking for?

I swear, it's only for my WIP.

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I'll believe you.
Thousands wouldn't, but I'll believe you.

Let's have a little look

sunna7kore said:

something that could be introduced via the skin or a shallow cut - say a scrape from the blade of a knife coated in x substance - and cause a relatively quick and silent death. (I know, how cliche.)

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I'm not an expert (When I said right here, I was referring to the forums ) but any poison introduced into the bloodstream needs time to do it's filthy work.
For the death to be quick and quiet, the poison would need to attack a major organ. It could (maybe) be introduced into the bloodstream through a cut, provided the cut isn't treated right away.
If this is necessary to the plot, you may have to fiddle one up. A "designer virus" if the poisonist is Government. Some "Distillation of tropical stuff" if not.

something that would cause sensitivity to light within a few hours, and over the course of a few days, extreme thirst and a painful death of some sort.

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There are plenty of drugs that cause photophobia. There are also diseases with light sensitivity as a symptom.

The problem with this scenario is that if it takes a few days to kill them, that's probably time enough for a hostipal to treat them.

Although there are animal bites that take a few days to kill. Komodo Dragons work like that I think.


Let me have a rummage.

sunna7kore said:

1) something that could be introduced via the skin or a shallow cut - say a scrape from the blade of a knife coated in x substance - and cause a relatively quick and silent death. (I know, how cliche.)

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Cyanide

2) something that would cause sensitivity to light within a few hours, and over the course of a few days, extreme thirst and a painful death of some sort. I am utterly open as to how painful and what other symptoms.

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The first thing that comes to mind is something anticholinergic, but the victim needs to be far from medical care since any reasonably competent ED could treat that. Google "anticholinergic" for specifics.

sunna7kore said:

2) something that would cause sensitivity to light within a few hours, and over the course of a few days, extreme thirst and a painful death of some sort. I am utterly open as to how painful and what other symptoms.

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There are plants that do that. There's a specific common flower that I'm trying to remember the name of which, I think, does pretty much exactly what you've described.

I'll get back to you.

5KidsMom said:

Cyanide

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You would not get enough cyanide into the bloodstream like this. The lethal dose required to kill an adult is something over 0.5g

Google 'Destroying Angel'

Don't know if this old thread will help or not, but here is a link.

http://www.absolutewrite.com/forums/showthread.php?t=17375&highlight=fish+heart+attack