As of my last update in April 2023, there is no widely recognized medicine under the name "IMVAGGIS." It's possible that the name could be misspelled, refer to a very new pharmaceutical product not yet broadly documented, or be a brand name specific to a certain region or country that hasn't gained international recognition. Typically, medicines are developed for a wide range of purposes, including treating specific diseases, managing symptoms, or providing supportive care in various medical conditions. Without specific information on "IMVAGGIS," it's challenging to provide a detailed description. It's always important to consult healthcare professionals or reliable medical resources for accurate and up-to-date information on medications.