Allergy Therapeutics Plc is a pharmaceutical company. The Company focuses on the treatment and prevention of allergy with aluminum-free products. The Company's segments are Central Europe, which includes segments, such as Germany, Australia, Switzerland and the Netherlands; Southern Europe, which includes Italy and Spain; the United Kingdom, and Rest of World. The Company provides information to healthcare professionals about the prevention, diagnosis and treatment of allergic conditions with focus on allergy vaccination, which is also known as specific immunotherapy or desensitization therapy. The Company's products include Pollinex Trees, Pollinex Grasses+Rye, Skin Prick Testing and diagnostic products. Its vaccines trade under various brand names, such as Pollinex Quattro, Polligoid and TA Graser Top. It uses specialized systems to process the Tyrosine to form a suspension microcrystalline tyrosine (MCT) that is combined with some of its subcutaneous injected therapies.