Doxylamine succinate is an antihistamine medication ... there are a few other critical points to keep in mind for safe use. Many OTC and prescription sleep aids are not recommended for use with ...
In the U.S., treatment of nausea and vomiting during early pregnancy usually involves pyridoxine (vitamin B 6) and antihistamines, such as doxylamine succinate, promethazine, or meclizine.