Oxatomide is primarily used as an antihistamine to treat allergic conditions. It is effective in managing symptoms of allergic rhinitis, such as sneezing, itching, and nasal congestion. Additionally, it is utilized in the treatment of chronic urticaria, providing relief from skin rashes and itching. Oxatomide is also prescribed for allergic conjunctivitis to alleviate eye irritation and redness. Its anti-inflammatory properties make it beneficial in reducing allergic reactions and improving overall comfort in patients with hypersensitivity disorders.