What made you want to look up baa? Please tell us where you read or heard it (including the quote, if possible).
Take Synthroid with water only on an empty stomach. Take Synthroid 4 hours before or after. taking iron or calcium supplements, or antacids. Soy, cottonseed meal, walnuts, fiber, and. grapefuit juice can affect the absorption of Synthroid.
Safety Considerations. 1  Thyroid hormones, including SYNTHROID, should not be used for the treatment of obesity or weight loss. 2  Do not use SYNTHROID if you have uncorrected adrenal problems. 3  Excessive amounts of levothyroxine sodium therapy have been associated with decreased bone strength, especially in women after menopause.