Acromantula Venom

[Hagrid]

No: HPFGUIDX 155305

> > Luckdragon:
> > I bet Hermione knows what it does, and using it agaist LV and 
> > and Nagini to counteract the Snake venom is a good guess. I'd 
> > bet money that the Spider venom will come into play in book 7.
> 
> Tonks:
> Of course, this means that everything will have to take place 
> before Slughorn gets a chance to sell the venom. So Slughorn, 
> Snape and maybe Hermione will know what it is used for and how to 
> use it. 
>
> Does anyone here know of any RL counterpart as far as spider venom 
> and snakes?  Or anyone know what RL spider venom could be used for 
> and have an idea how this might translate to the WW?
> 
> Tonks_op
>
Aussie:

In COS (Chap 13), Tom called Hagrid's pet spider a monster. It 
knocked Tom over as it escaped, then Hagrid jumped Tom and knocked 
his wand away before Tom could hurt the fleeing spider. (A bit 
different from movie). 

Although Tom/LV called it a monster, spiders ran away from 
Basalisks. So not sure if Tom fears it enough to use it in guarding 
a Horcrux (could Hufflepuff's cup be sitting in Aragog's old lair in 
the Forbidden Forrest? 45 years ago, it would have been easier for 
Tom to put it there.)

Now about Snake and Spider venom: It is used for anti-venoms, but 
may be used for other medical research. (or pranks if Fred and 
George get any ideas). I found out :-

xxxxxxxxxxxxxxxxxxxxxxxx
http://www.reptilepark.com.au/venom_spider.asp

The venom in spiders helps them in several ways. It immobilize their 
prey, begins the process of digestion and is a defense against 
enemies. Venom glands originated as digestive glands, which aided in 
the external digestion of prey. Venom is a complex mixture of 
substances, but the toxins are usually only a single substance. 
Venoms act in different ways and affect different parts of the bite 
victim. The main types of venom are 

Neurotoxins: affect the nervous system. 
Myotoxins: affect the muscles. 
Haemorrhagins: affect the blood vessels and cause bleeding. 
Haemotoxins: affect the blood. 
Nephrotoxins: affect the kidneys 
Cardiotoxins: affect the heart. 
Necrotoxins: affect tissue and cause necrosis. 
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

That site then explains symptoms of 2 dangerous Australian Spiders. 
One reacts like Ron facing a history exam (twitching, swetting, 
rapid heartbeat) and the other like getting hit by a bludger from 
the twins (pain and vomitting)