Triavil is a medication used to treat depression, anxiety, and other mental health disorders. It is a combination of two drugs, amitriptyline and perphenazine. There are several other medications that are used for similar purposes and can be used as synonyms for Triavil. These include Elavil, Aventyl, Endep, Sinequan, and Tofranil. These medications also contain amitriptyline, but differ in their secondary active ingredient. It is important to note that while these medications may have similar uses, they differ in their dosages and may produce different side effects or interactions with other medications. Therefore, it is important to consult a healthcare professional before switching or starting any medication.