if it is a 10x of syrian rue seeds than all you need to do is find out the dosage of unextracted rue seeds, and divide than by 10...I dont use rue for oral MAOI's, but I think that most prefer from 1-3 grams..so at 1 gram dosage, you would need 100mg of the 10x, at 3 grams you need 300mg etc..assuming it is for sure a 10x extract.

most people say 3g rue seeds is the dose, and 200mg of extract is plenty. although if one is sloppy at extracting rue and looses bunch here and there, guess it works out to just about that - a tenth.