Astemizole Pregnancy and Breastfeeding Warnings
Astemizole is also known as: Hismanal
Astemizole Pregnancy Warnings
No increased risk to the fetus was observed among 114 women involved in a prospective, controlled, observational study.
Astemizole has been assigned to pregnancy category C. Animal studies have failed to reveal evidence of teratogenicity. There are no controlled data in human pregnancy. Astemizole should only be given during pregnancy when there are no alternatives and benefit outweighs risk.
Astemizole Breastfeeding Warnings
There are no data on the excretion of astemizole into human milk. However, the molecular weight of astemizole is low enough that some passage into breast milk probably occurs.
References for pregnancy information
- "Product Information. Hismanal (astemizole)." Janssen Pharmaceuticals (2002):
- Pastuszak A, Schick B, Dalimonte D, Donnenfeld A, Koren G "The safety of astemizole in pregnancy." J Allergy Clin Immunol 98 (1996): 748-50
References for breastfeeding information
- "Product Information. Hismanal (astemizole)." Janssen Pharmaceuticals (2002):
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.