NEJM article 1/2015 randomized 27 people with ACEi induced angioedema to<unk>  vs std therapy (Prednisone 500mg + Clemastine 2mg) looking at time to resolution.
RESULTS- significantly shorter (8 hrs vs 27.1 hrs) in<unk>  group.
Cost according to Goodrx= $9,000/dose (on 8/7/2015)
Icatibant
Patiromer
Zolpidem
Dantrolene
Nadalol
Pramipexole
Cyproheptadine
Triazolam