<unk>  is a complement 5a receptor antagonist that is FDA approved for the treatment of severe active anti-neutrophil cytoplasmic autoantibody-associated vasculitis (granulomatosis with polyangiitis and microscopic polyangiitis) in combination with standard therapy, including glucocorticoids.   Common adverse reactions include hypertension, blood creatinine increase, fatigue, upper abdominal pain, nausea, headache, vomiting, rash, dizziness, and paresthesia.
Avacopan
Dolastetron 
Oxetoron
Diisopromine
Tolperisone
Iotrolan
Ioxilan
Iopromide