I have to have a treatment of Pylera for stomach issues. bismuth subcitrate potassium, 140 mg metronidazole, 125 mg smaller capsule (size 3) containing tetracycline hydrochloride, 125 mg Strong med with lots of side effects. Always concerned when I need to take medication, don't want want my T worse. Can't always avoid the meds that might cause spikes. Thoughts?