Nuprin is a brand name medication used for pain relief, mainly for headaches or menstrual cramps. However, there are other synonyms or alternative drugs available that can also serve the same purpose. Some of these include Advil, Aleve, aspirin, Tylenol, ibuprofen, naproxen, and acetaminophen. Before selecting a pain medication, it's essential to consider the health condition of the user and any other medications that the individual is currently taking. Consulting a physician is also necessary to determine the right dosage and reduce any risks or possible side effects associated with the use of pain relievers.