It thus helps the person sleep longer, but can also have a “hangover effect” the next day. A person should always talk to a doctor about their sleep problems before using a new over-the-counter sleep aid. Doxylamine succinate is excreted from the body somewhat more slowly than diphenhydramine hydrochloride. However, making lifestyle changes is usually the best approach for chronic sleep disorders.
Private labels that contain the same active ingredients as branded sleep aids are also generally available. This is one for the sleepless at home in the UK who’ve probably seen Kalms in more than one supermarket or drugstore shelf.