This is my first shot at this search. I have't found a good MeSH for this drug class. When gatherig keywords, I started with Cromolyn-like drugs listed in Poisindex MICROMEDEX, found an additional drug in PubMed, and then used Martindale's. I am not at all certain that all relevant drugs are included. I'm posting so that I don't have to start over. The brand names are important for this search. I've removed the hyphenated and multi-word drug names that were "not found" by PubMed.
((("mast cells"[mesh] OR "mast cell" OR "mast cells") AND (stabiliz* OR stabilis*)) OR CROMOLYN OR Cromoglycic OR 16110-51-3 OR cromoglycate OR DSCG OR FPL 670 OR FPL-670 OR "FPL 670" OR cromoglicas OR cromoglicate OR cromoglycate OR Cromoglicato OR 15826-37-6 OR NEDOCROMIL OR FPL59002KC OR 101626-68-0 OR FPL-59002 OR FPL59002 OR "FPL 59002" OR FPL59002KP OR Nedocromilo OR 69049-73-6 OR 69049-74-7 OR "Aarane" OR "Aarane" OR "Acecromol" OR "Acromax" OR "Actal" OR "Acticrom" OR "Aerocrom" OR "Aeropaxyn" OR "Alercrom" OR "Alerg" OR "Alergocrom" OR "Alerion" OR "Alleoftal" OR "Allercrom" OR "Allergocrom" OR "Allergojovis" OR "Allergospasmin" OR "Allergospasmin" OR "Allergospasmine" OR "Allergostop" OR "Allergotin" OR "Allergoval" OR "Allersol" OR "Alloptrex" OR "Asthacrom" OR "Asthmocupin" OR "Botastin" OR "Brunicrom" OR "Catacrom" OR "Chromotop" OR "Clariteyes" OR "Clarityn" OR "Claroftal" OR "Clo-5" OR "Coldacrom" OR "Colimune" OR "Croglina" OR "Crolidin" OR "Crolom" OR "Cromabak" OR "Cromadoses" "Cromal" OR "Cromantal" OR "Cromate" OR "Cromax" OR "Cromedil" OR "Cromese" OR "Cromex" OR "Cromisol" OR "Cromo" OR "Cromobene" OR "Cromocato" OR "Cromodal" OR "Cromodyn" OR "Cromoftol" OR "Cromogen" OR "Cromoglicin" OR "Cromoglin" OR "Cromohexal" OR "Cromol" OR "Cromolerg" OR "Cromolind" OR "Cromolux" OR "Cromopharm" OR "Cromophtal" OR "Cromopp" OR "Cromoptic" OR "Cromorhinol" OR "Cromosan" OR "Cromosandoz" OR "Cromosoft" OR "Cromosol" OR "Cromovist" OR "Cromoxal" OR "Cromozil" OR "Cromunal" OR "Cronacol" OR "Cronase" OR "Cropoz" OR "Cryl" OR "Cusicrom" OR "Cusilyn" OR "Dadcrome" OR "Davicrome" OR "Diffusyl" OR "Dilospir" OR "Dispacromil" OR "Ditec" "DNCG" OR "Doxalpha" OR "Duobetic" OR "Duotec" OR "duracroman" OR "Esirhinol" OR "Exaler" OR "Farmacrom" OR "Fenistil" OR "Fenolip" OR "Fintal" OR "Flenid" OR "Fluvet" OR "Frenal" OR "Gaster"[tiab] OR "Gastrocrom" OR "Gastrofrenal" OR "Gelodrin" OR "Glicacil" OR "Glicinal" OR "Glinor" OR "Hexacroman" OR "Humex" OR "Hyalcrom" OR "Ifiral" OR "Indoprex" OR "Intal" OR "Intercron" OR "Iopanchol" OR "IsoCrom" OR "Kaosyl" OR "Kiddicrom" OR "Klonalcrom" OR "Kombicrom" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Lecrolyn" OR "Livari" OR "Lomudal" OR "Lomupren" OR "Lomupren compositum" OR "Lomusol" OR "Lomusol" OR "Lomusol" OR "Lomusol" OR "Lomusol" OR "Lomuspray" OR "Maxicrom" OR "Maxicrom" OR "Maxicrom" OR "Mitayaku" OR "Multicrom" OR "Nalcrom" OR "Nalcron" OR "Nasalcrom" OR "Nebulasma" OR "Nebulcrom" OR "Novacrom" OR "Oftacon" OR "Oftacon" OR "Oftavit" OR "Ophtacalm" OR "Ophtacalmfree" OR "Opticrom" OR "Opticron" OR "Oralcrom" OR "Padiacrom" OR "Pentacrom" OR "Pentatop" OR "Polcrom" OR "Poledin" OR "Pollyferm" OR "Prevalin" OR "Primover" OR "Pulbil" OR "Pulmosin" OR "Renocil" OR "Rexacrom" OR "Rilan" OR "Rinil" OR "Rinilyn" OR "Rinofrenal" OR "Rinofrenal" OR "Rinogel" OR "Rinoglin" OR "Runbo" OR "Rynacrom" OR "Rynacrom" OR "Rynacrom" OR "Shuanglang" OR "Sificrom" OR "Smarodax" OR "Sofro" OR "Spaziron" OR "Spralyn" OR "Stadaglicin" OR "Stadaglicin" OR "Taleum" OR "Ufocollyre" OR "Vekfanol" OR "Vicrom" OR "Vistacrom" OR "Vistacrom" OR "Visuglican" OR "Vivicrom" OR "Vividrin" OR "Viz-On" OR "Zallyre" OR "Zineli" OR "Zulboral" )