It is a well known fact that breastfeeding is best source of nutrition for infants. Breast milk provides minerals, vitamins and antibodies in most acceptable format when they need it. Nutrition taken by mother passes to breast-milk and same thing applies to medicines taken by mothers. Not all drugs cause problem for baby but some do. Lets analyze if Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. is safe for baby while breastfed.
What is Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. used for?
Montelukast sodium oral granules are a leukotriene receptor antagonist indicated for: Prophylaxis and chronic treatment of asthma in patients 12 months of age and older (1.1). Relief of symptoms of allergic rhinitis (AR): seasonal allergic rhinitis (SAR) in patients 2 years of age and older, and perennial allergic rhinitis (PAR) in patients 6 months of age and older (1.3). 1.1 Asthma Montelukast sodium oral granules are indicated for the prophylaxis and chronic treatment of asthma in adults and pediatric patients 12 months of age and older. 1.3 Allergic Rhinitis Montelukast sodium oral granules are indicated for the relief of symptoms of seasonal allergic rhinitis in patients 2 years of age and older and perennial allergic rhinitis in patients 6 months of age and older.
Is using Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. unsafe in breastfeeding? Can there be bad consequences for baby if I use it while breastfeeding?
Active ingredient in Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. is Montelukast and based on our analysis of Montelukast it appears that using Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. is safe in breastfeeding. Below is analysis of Montelukast while breastfeeding.
Statement of Manufacturer/Labeler about breastfeeding usage
8.2 Lactation Risk Summary A published clinical lactation study reports the presence of montelukast in human milk. Data available on the effects of the drug on infants, either directly [see Use in Specific Populations ( 8.4 )] or through breast milk, do not suggest a significant risk of adverse events from exposure to montelukast. The effects of the drug on milk production are unknown. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for montelukast and any potential adverse effects on the breastfed infant from montelukast or from the underlying maternal condition.
Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. Breastfeeding Analsys
SafeCAS Number: 151767-02-1
Pharmacokinetic data (moderately high molecular weight and high protein-binding capacity) explain an observed very low excretion into breastmilk (Datta 2016). A drug of the same group and similar effect, Zafirlukast, is also excreted into breastmilk in non-significant amounts. It is a licensed medication to be used in infants from 6 months of age on. Indeed, it has been used as early as 3 months of age with the same tolerance observed in older children.
Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. Breastfeeding Analsys - 2
CAS Number: 158966-92-8
Very low levels of montelukast appear in breastmilk. Montelukast is approved for use in children as young as 6 months of age and has been used in neonates in dosages far greater than the amounts in breastmilk. Amounts ingested by the infant would not be expected to cause any adverse effects in breastfed infants No special precautions are required.

What should I do if already breastfed my kid after using Montelukast Sodium | Teva Pharmaceuticals Usa, Inc.?
As usage of Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. is mostly safe while breastfeeding hence there should not be any concern. In case of any change in behavior or health of your baby you should inform your health care provider about usage of Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. else no further action is required.
My health care provider has asked me to use Montelukast Sodium | Teva Pharmaceuticals Usa, Inc., what to do?
Definitely, Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. is safe in lactation for baby. No wonder your doctor has recommended it.
If I am using Montelukast Sodium | Teva Pharmaceuticals Usa, Inc., will my baby need extra monitoring?
No extra baby monitoring required while mother is using Montelukast Sodium | Teva Pharmaceuticals Usa, Inc.
Who can I talk to if I have questions about usage of Montelukast Sodium | Teva Pharmaceuticals Usa, Inc. in breastfeeding?
US
National Womens Health and Breastfeeding Helpline: 800-994-9662 (TDD 888-220-5446) 9 a.m. and 6 p.m. ET, Monday through Friday
UK
National Breastfeeding Helpline: 0300-100-0212 9.30am to 9.30pm, daily
Association of Breastfeeding Mothers: 0300-330-5453
La Leche League: 0345-120-2918
The Breastfeeding Network supporter line in Bengali and Sylheti: 0300-456-2421
National Childbirth Trust (NCT): 0300-330-0700
Australia
National Breastfeeding Helpline: 1800-686-268 24 hours a day, 7 days a week
Canada
Telehealth Ontario for breastfeeding: 1-866-797-0000 24 hours a day, 7 days a week