I know I have to put the wyvern poisons in the four baisins, but can you make the antidotes and the poisoned weapons like it says when you right click on the potions??? :confused: Or is that the only use for them?

Pretty sure that is the only use for them.

I do not think you can do anything else with them. I could not sell them to any of the merchants in Kuldahar or to Riki in the Severed Hand. Other than their use in the four basins I believe the only thing they are good for is taking up space in your inventory...

I was looking forward to giving my rouge a poisoned weaon :mad: ! Oh well. Thanks.

Well, you could use the stingers as poisoned daggers since they have a chance of poisoning an opponet when used as a weapon... However, they are kind of weak and there are definitely better weapons that deal poison damage out there (like Letto's Scar in the Prolouge or the Dagger of Vemon you can find outside the horde fortress-random item near the winter wolves).

It would, however, be cool to be able to poison your own weapons without using the short duration, very expensive to acquire, and (IMHO) highly ineffective Envenom Weapon feat.