<unk> (inhalation) is a mast cell stabilizer that is FDA approved for the prophylaxis of bronchial asthma.   Common adverse reactions include cough, nasal congestion,nausea, sneezing, wheezing,headache, urticaria, and lacrimation.
Cromolyn 
Carbocromen
Plerixafor
Nedocromil
Hymecromone
Methapyrilene
Theobromine
Flumetasone