i don't think so. synthroid is used to treat thyroid disorders and metformin is used to treat diabetes. but it's not to say that maybe the sleep apnea is coming from an underlying cause and if not i would refer them to a physician because they may need to be tested to see if there is something else going on. but once again if you have a question about an adverse event or a side effect that you are feeling call your pharmacist come and visit us or ask us we are more than happy to help you at anytime.
i am taking synthroid and metformin. would they cause me to have sleep apnea?