what is category class of theophylline
Taking or stopping certain drugs while on theophylline. You need to be very careful about other drugs you are on or stop taking because of the same potentially fatal toxic reaction. Pregnancy and Theophylline. Theophylline is an FDA Pregnancy Category C drug, meaning that a possible risk to developing fetuses cannot be ruled out. Studies in animals have shown that the drug can cause birth defects, but no adequate and well-controlled studies have been conducted in pregnant women.