Xiidra (lifitegrast ophthalmic solution) 5% is a lymphocyte function-associated antigen-1 ( lfa-1) antagonist supplied as a sterile, clear, colorless to slightly brownish-yellow colored, isotonic solution … In a real-world study, patients who wore contact lenses and took xiidra: €  xiidra may provide lasting symptom relief for some patients with continued twice-daily use.