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Pregnancy USFDA pregnancy category B. Montelukast + Levocetirizine HCl (Leukast Plus) may not cause harm to an unborn foetus. Before Montelukast treatment, the patient should discuss with the physician, if they are planning for a pregnancy.
Nursing Mother: It is unclear whether the drug could pass through the breast milk to a breast feeding baby. Consult a physician before taking Montelukast + Levocetirizine HCl (Leukast Plus), if the patient is a nursing mother.
Pregnancy: Levocetirizine: There are no or limited amount of data (less than 300 pregnancy outcomes) from the use of levocetirizine in pregnant women. However, for cetirizine, the racemate of levocetirizine, a large amount of data (more than 1000 pregnancy outcomes) on pregnant women indicate no malformative or feto/neonatal toxicity. Animal studies do not indicate direct or indirect harmful effects with respect to pregnancy, embryo/fetal development, parturition or postnatal development.
The use of levocetirizine may be considered during pregnancy, if necessary.
Cetirizine, the racemate of levocetirizine, has been shown to be excreted in human.
Therefore, the excretion of levocetirizine in human milk is likely. Adverse reactions associated with levocetirizine may be observed in breastfed infants. Therefore, caution should be exercised when prescribing levocetirizine to lactating women.
Montelukast: Animal studies do not indicate harmful effects with respect to effects on pregnancy or embryonal/foetal development.
Limited data from available pregnancy databases do not suggest a causal relationship between montelukast and malformations (i.e. limb defects) that have been rarely reported in worldwide post marketing experience.
Montelukast may be used during pregnancy only if it is considered to be clearly essential.
Studies in rats have shown that montelukast is excreted in milk. It is not known if montelukast is excreted in human milk.
Montelukast may be used in breastfeeding mothers only if it is considered to be clearly essential.
