Is Maxair Safe During Pregnancy?
Maxair® (
pirbuterol acetate) may not be safe for women who are pregnant. In animal studies involving Maxair and pregnancy, the drug caused miscarriages.
Maxair and Pregnancy Category C
The U.S. Food and Drug Administration (FDA) uses a pregnancy category system to classify the possible risks to a fetus when a specific medicine is taken during pregnancy. Pregnancy Category C is given to medicines that have not been studied in pregnant humans but do appear to cause harm to the fetus in animal studies. Also, medicines that have not been studied in any pregnant women or animals are automatically given a Pregnancy Category C rating.
Maxair was given a pregnancy Category C rating because of potential problems in animal studies. When given to pregnant rabbits, Maxair did not cause birth defects. However, it did increase the risks of miscarriages.
It is important to note that animals do not always respond to medicines the same way that humans do. A pregnancy Category C medicine may be given to a pregnant woman if the healthcare provider believes that the benefits to the pregnant woman outweigh any possible risks to the unborn child. Because "rescue" medications like Maxair are usually essential for people with
asthma, healthcare providers typically recommend that pregnant women continue to take medications like Maxair.