There are potential known drug interactions associated with Tri-Cyclen Lo. You should disclose all of your current vitamins, supplements, OTC drugs, herbal products and all current prescription medicines. Our pharmacists will provide therapeutic screening for all orders against this supplied list. Call your doctor or seek immediate medical attention if you experience an allergic reaction or drug interaction. Rufinamide Dexamethasone Mavacamten Carbamazepine Betamethasone Anagrelide Paclitaxel Protein-Bound Ampicillin Cyclosporine Mycophenolic Acid Prednisone Oxytetracycline Boceprevir Artemether Cefprozil Theophylline Cefpodoxime Phenobarbital Pibrentasvir Cefadroxil Encorafenib Mitapivat Etravirine Sultamicillin Armodafinil Fosphenytoin Telaprevir Efavirenz Ceftazidime St John's Wort