Depends on what kind you choose, my doctor and my local pharmacist recommend me only using....Ricola natural Honey-Herb. Other cough drops contain a few ingredients that haven't been studied enough to know the possible side effects. Ask a pharmacist, detail how many weeks you are. I can also suggest a homemade tea that's helpful!!! Fresh Chamomile with both the flower and stem, fresh lime, cinnamon and honey. It's simple to make.