Which of the following is a common side effect of Cromolyn Sodium?

Cromolyn Sodium is a medication primarily used as a mast cell stabilizer, particularly in the management of asthma and allergic conditions. One of the most frequently reported side effects of Cromolyn Sodium is nasal congestion. This occurs because Cromolyn can cause irritation or localized inflammation in the nasal mucosa upon administration, leading to symptoms of nasal congestion as a result of its mechanisms in stabilizing mast cells and altering inflammatory responses.

While the drug generally has a good safety profile and is not known for causing systemic effects like increased heart rate, excitation, or bronchoconstriction, nasal congestion can arise from localized irritation. Understanding this side effect helps patients manage expectations when using Cromolyn Sodium and supports adherence to treatment protocols by highlighting that some side effects may be manageable.

The nature of oral inhalation medications often leads to localized effects that do not translate into broader systemic issues, which is why Cromolyn Sodium is favored for its relatively mild side effects.