Belladonna Poison Leaking Into Neighbouring Plants

I have 3 Belladonna plants that have dill growing all around them. Can I still use the dill? I just wanted to check first to see if the roots of other plants growing around Belladonna would somehow pick up some of it's deadly components. I just didn't want my dill pickles to kill me or possibly make me delirious.
Also, the reason I had gotten the Belladonna was because I had read in very small quantities it acted as a muscle relaxant. I take a prescribed muscle relaxant every night at bed time. I thought an herbal one would be better, but in reading all the literature I can find on Belladonna, I'm not sure that's a good idea, and I thought of just making a tea of the fresh leaf and drinking that , but I'm not sure of a quantity of fresh leaf. Do you have any recommendations ? I don't know how to safely go about this.

The dill will not take on the belladonna poison, but you could inadvertently get a bit of leaf when you harvest the dill. Move the two apart!
I get chills of horror when you say you want to drink belladonna tea to relax! The plant is so poisonous that one berry kills a child! Also, each person reacts differently to the poison, so being under a qualified doctor's care when trying out the correct dose for you is essential!
THE HERB IS ALSO A SKIN IRRITANT AND ALLERGEN AND COULD GIVE YOU A RASH WHEN YOU BRUSH AGAINST IT WHILE HARVESTING THE DILL