Albuterol, metaproterenol and terbutaline have been studied in humans. Injections of terbutaline are sometimes used to control premature labor. No trials of these medications in pregnancy have been performed, and careful consideration is advised with use during pregnancy. These medications may be especially helpful for control of nighttime symptoms to ensure uninterrupted sleep. Theophylline has extensive human experience without evidence of significant abnormalities.
Newborns can have jitteriness, vomiting and fast pulse if the maternal blood level is too high.
Therefore, patients who receive Theophylline should have blood levels checked during pregnancy. Ipratropium is absorbed less than similar medications in this class, such as atropine. Inhaled cromolyn sodium is virtually devoid of side effects, but is less effective than inhaled corticosteroids. Nedocromil is a newer medication, similar to cromolyn. Although there is no reported experience with nedocromil during human pregnancy, animal data are reassuring.