Brompton's mixtures were historically used as a remedy for opium addiction, but over time, the term has broadened to encompass a variety of mixtures and preparations. Depending on the context, there are several synonyms that can be used in place of Brompton's mixtures. Some possible synonyms include theriac, elixir, tincture, potion, and remedy. These terms all imply a type of preparation or concoction that can be ingested for medicinal purposes. While Brompton's mixtures are specifically associated with opium addiction, these other synonyms could be used to describe a variety of medicinal mixtures or remedies.