I would return it and get the Black-Walnut hulls (fresh green Black-Walnut hulls). As for dose, isn't it on each of the bottles or capsules? I'd follow the directions for each one.

My tinctures all have dose on the directions, with some lee-way for each one. Like the Wormwood says, 10-20 drops 2-3 x a day.

Prism

Why not make a tincture from each, then combine the tinctures in a variety of ways to find out which is most effective for you. When you figure it out, make a note of it. (Let us know too!) And when you make your next batch, use that combination.

By making three seperate tinctures, you could also experiment with rotating them. Use Wormwood for a week, switch to green Black-Walnut hull, follow up with cloves, as it is used to kill eggs. Skip a week to give the body a rest and repeat the process.

I get herbs in bulk and do my own formulas too. I've found it to be cheaper and stronger than any premade commercial product. There's lots of trial and error, but you'll find things that work for you. I've done tinctures, teas, and plain powders, and so far, haven't noticed a difference in effect based on form I take it in...if it's something that's effective for me, it works the same in any of these forms. So, you can just powder the stuff and take it and it may work just the same as a tincture.

But...be careful with Wormwood , don't take too much of it...a few capsules is probably just fine. With Black-Walnut and cloves...you can increase dose if you feel you need. I have to take high dose to get affect, which is another reason I don't buy premade, I'd have to take the whole bottle in a day to get anywhere.

black walnut leaves apparantly are different from the hulls, although I've not had any effects with Black-Walnut hulls, I've tried several times. For many people it seems to work though. Cloves is one of my favorites, I use this one often.

glaxony's suggestion is great for doing separate tinctures, then you'll know the best combination for yourself.