three new eye drops for itching due to allergic conjunctivitis
This spring you'll see three new eye drops for itching due to allergic conjunctivitis...Alocril (nedocromil, Allergan), Alamast (pemirolast, Santen), and Zaditor (ketotifen, Ciba Vision).
Alocril and Alamast are mast cell stabilizers...similar to Alomide (lodoxamide) and Crolom (cromolyn).
These drugs inhibit histamine RELEASE...but they don't block the effects of histamine that has already been released. That's why these drugs sometimes take several days to become effective.