CommercialPrior AuthMedium impact
Cromolyn Sodium Oral Solution
Blue Cross & Blue Shield of Mississippi·MS · Allergy & Immunology, Dermatology, Gastroenterology +2 more·Medical Policy
We identified it
Jun 20, 2026
Summary
BCBS Mississippi removed the requirement for patients to try and fail chlorpheniramine plus cimetidine before approving cromolyn sodium oral solution for mastocytosis. This simplifies prior authorization by eliminating a step-therapy requirement.
Action Required
Immediately: Update prior authorization processes for cromolyn sodium oral solution (Gastrocrom) - remove any references to required trial of chlorpheniramine plus cimetidine. Billing team should verify formulary coverage using patient member ID before prescribing. Ensure documentation includes appropriate mastocytosis diagnosis with required biopsy evidence for prior auth approval.