Answer
No. Antihistamines temporarily suppress allergy symptoms, whereas timothy grass pollen allergen is immunotherapy intended to modify the immune response to grass pollen.
Sources for this answer
- GRAZAX 75,000 SQ-T sublingual lyophilisate — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.