Active ingredient purpose (in each 5 ml) diphenhydramine hcl 12.5 mg..........antihistamine inactive ingredients anhydrous citric acid, carboxymethylcellulose sodium, flavors, glycerin, purified water, saccharin sodium, sodium benzoate, sodium citrate, sorbitol solution
Manufacturer likely did not include an allergen statement; however, please double-check the product packaging and/or contact the manufacturer if you have a severe food allergy.