There are quite a few synonyms for the term "quack medicine." Some other common terms used to describe these kinds of remedies include snake oil, dodgy medicine, bogus medicine, fake medicine, fraudulent therapy, and phony cure. Many of these terms are used to describe medical practices that are not backed by scientific evidence and are often used to take advantage of desperate people seeking a cure for their illnesses. It's important to be wary of these types of remedies and always seek out scientifically-proven treatments for any medical conditions you may face.