... wort, and Loryna during the same month? I have read that chasteberry and St. Johns wort can interfere with oral contraceptives, but I dont understand quite how yet. I am looking for ways to feel balanced emotionally, like Loryna alone used to provide for me all month. I'm trying to free myself of the horrors of PMDD and be able to handle real life emergencies at the same time. Physically, I haven't been experiencing unbearable symptoms. Thank you very much for any knowledge you can share in advance!