Intal: Full prescribing information from RxList.MedlinePlus: Cromolyn Sodium Nasal Solution: Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations.MedlinePlus: Cromolyn Sodium Oral Inhalation: Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations.Nasalcrom: Full prescribing information from RxList.Opticrom: Full prescribing information from RxList.