Grass-pollen-allergy-immunotherapy/timothy-grass-pollen-allergen-extract-(grastek): Various toxicities: 2 case reports.

A 33-year-old man developed mouth ulcers, tongue swelling, numbness, anaphylactic reaction and oral swelling following treatment with timothy grass pollen allergen extract and grass pollen allergy immunotherapy as allergen immunotherapy (AIT). Therefore, he was initiated on sublingual AIT with timothy grass pollen allergen extract [timothy grass (Phleum pretense) allergen extract] 75000 standardised quality units tablet (SQ-T; Grazax oral lyophilisate). [Extracted from the article]