Sorry to disagree with other experts, especially Dr. Hale, but I do not think this drug is contraindicated. It does have a long half life. However, the staining of the teeth is not an issue. Tetracyclines should not be given with milk, because they bind to calcium and are not absorbed. This is good for the nursing baby, so that the small amount in the milk will not get absorbed. If the drug does not bind to calcium, it is not an issue for the teeth. Jack Newman, MD, FRCPC