You can certainly do a Liver Flush while on antidepressants, however, you really want to do a Liver Flush to be drug free.
I have had a few friends who were on antidepressants and slowly weaned themselves off of the meds after liver flush.
So do the flush and then slowly taper down your drug dosage. Once you are done with the drug, you definitely want to flush again. I know you will feel great afterwards. All the toxins from taking drugs and junk foods will come out.
A good thing you are on a vegan diet, another good way to get micronutrients and heal your body, be Depression free.