Litfulo inhibits Janus kinase 3 and the tyrosine kinase and is believed to work by blocking the signaling of cytokines and cytolytic activity of T cells, which are implicated in alopecia areata
Although promising, research is needed to confirm its effectiveness

Seek immediate medical care (emergency department or urgent care) if you experience: Severe, persistent abdominal pain, especially in the right upper quadrant, lasting more than a few hours Abdominal pain accompanied by fever (temperature above 100.4F or 38C) Yellowing of the skin or eyes (jaundice) Severe nausea and vomiting preventing fluid intake and leading to dehydration Dark urine combined with pale stools Abdominal pain radiating to the back, which could indicate pancreatitis The combination of fever, jaundice, and abdominal pain, which may indicate cholangitis (bile duct infection) Confusion, extreme weakness, or very low blood pressure with any of the above symptoms (possible signs of sepsis) Important: If you experience severe, persistent abdominal pain with or without vomiting that could be consistent with pancreatitis, stop taking semaglutide immediately and seek urgent medical care, as directed in the FDA labeling

There is no published human trial studying concurrent administration of two injectable GLP-1 agonists, so the combined drug-interaction and adverse-event profile is unknown
Baseline zonulin levels were compared between the groups as well as in pre-RA patients, who developed RA and those who did not develop RA (Erlangen cohort)