There are several synonyms for the phrase "dose of one's medicine" that can be used to convey a similar meaning. One alternative option is "taste of their own medicine," which refers to the concept of experiencing the same negative treatment that one has inflicted upon others. Another similar phrase is "comeuppance," which is a more formal way of describing the idea of someone receiving just punishment for their prior actions. Yet another synonym is "retribution," which suggests a slightly more severe form of punishment or revenge for past transgressions. Ultimately, any of these phrases can be used to describe a situation in which someone is receiving the consequences of their previous behavior.
