Final answer:
The best reference to consult for the safety of Singulair® during pregnancy is Brigg's Drugs in Pregnancy and Lactation. It provides comprehensive, evidence-based information on medication use while pregnant. It is also important to follow the recommendations of the healthcare provider managing the pregnancy.
Step-by-step explanation:
If a pregnant woman is inquiring about the safety of continuing Singulair® (montelukast) to control her asthma, the best reference to consult for safety in pregnancy data is Brigg's Drugs in Pregnancy and Lactation. This extensive guide provides information on the effects of medications during pregnancy and lactation, and is a reliable and trusted source that healthcare professionals use. It offers detailed evidence-based information to help make informed decisions about medication use in pregnancy.
While Brigg's is an excellent reference, it is also important to mention that each case is unique. Therefore, it is advised to consult with and follow the recommendations of the healthcare provider managing the woman's pregnancy and asthma, who will consider individual risk factors and benefits before making a medication decision.