$Unique_ID{BRK00079} $Pretitle{} $Title{Drug Avoidance for Nursing Mothers} $Subject{nursing medicine milk motherhood Childbirth Drug Drugs newborn Lithium hypotonia Antimetabolites Radioactive medications medication iodine goiter hypothyroidism anticoagulant Phenindione hedulin coagulation Chloramphenicol Chloromycetin breast feeding feed medicines newborns anticoagulants baby infant breast-feeding breast-feed} $Volume{K-19,R-19} $Log{} Copyright (c) 1991-92,1993 Tribune Media Services, Inc. Drug Avoidance for Nursing Mothers ------------------------------------------------------------------------------ QUESTION: I'm a nursing mother. What drugs should I avoid? ------------------------------------------------------------------------------ ANSWER: Fortunately, most drugs taken by a woman who is breast feeding are not hazardous to the newborn, but there are some drugs that should be avoided completely. Lithium, which is used in the treatment of depression, should not be used while breast feeding as it can cause hypotonia--abnormal muscle tone and decreased strength. Antimetabolites (usually used to treat cancer), taken by the mother, may cause long term anti-DNA activity in the baby. Radioactive medications will contaminate breast milk with radioactive substances. Preparations containing iodine can cause goiter and hypothyroidism. The anticoagulant Phenindione (hedulin) passes quickly into breast milk and may slow down the baby's blood coagulation. The antibiotic Chloramphenicol (Chloromycetin) is very potent, and high concentrations pass into the breast milk, which may in turn cause bone marrow depression. These drugs should be avoided completely, but while many medications pass into breast milk, the excretion of a drug into breast milk does not necessarily pose a hazard, because usually only 1 to 2% of the dosage will pass through to the milk. It is wise, however, for nursing moms to use as few drugs as possible. You would be wise to keep both your physician and your baby's doctor informed of all that's going on, so that the risks to the baby can be measured against the benefits the medications provide for the mother. Nursing moms can also minimize the effects of their medications in their infants by taking the drugs after breast feeding. ---------------- The material contained here is "FOR INFORMATION ONLY" and should not replace the counsel and advice of your personal physician. Promptly consulting your doctor is the best path to a quick and successful resolution of any medical problem.