Chlorpheniramine can be used with allergy immunotherapy to enhance symptom relief. It helps manage immediate allergic symptoms while immunotherapy adjusts the immune response. However, monitoring for excessive drowsiness or interaction effects is necessary.

Combining Chlorpheniramine with immunotherapy can improve comfort by reducing allergy symptoms during treatment. However, combining these treatments increases the risk of side effects such as drowsiness and impaired coordination. Always consult with a healthcare provider.