A ALIMENTARY TRACT AND METABOLISM

 B BLOOD AND BLOOD FORMING ORGANS

 C CARDIOVASCULAR SYSTEM

 D DERMATOLOGICALS

 G GENITO URINARY SYSTEM AND SEX HORMONES

 H SYSTEMIC HORMONAL PREPARATIONS, EXCL. SEX HORMONES AND INSULINS

 J ANTIINFECTIVES FOR SYSTEMIC USE

 L ANTINEOPLASTIC AND IMMUNOMODULATING AGENTS

 M MUSCULO-SKELETAL SYSTEM

   M01 ANTIINFLAMMATORY AND ANTIRHEUMATIC PRODUCTS

   M02 TOPICAL PRODUCTS FOR JOINT AND MUSCULAR PAIN

   M03 MUSCLE RELAXANTS

   M04 ANTIGOUT PREPARATIONS

     M04A ANTIGOUT PREPARATIONS

       M04AA Preparations inhibiting uric acid production

         M04AA01 Allopurinol [DG:DG00779]

         M04AA02 Tisopurine

         M04AA03 Febuxostat [DG:DG02878]

         M04AA51 Allopurinol, combinations

       M04AB Preparations increasing uric acid excretion

       M04AC Preparations with no effect on uric acid metabolism

       M04AX Other antigout preparations

   M05 DRUGS FOR TREATMENT OF BONE DISEASES

   M09 OTHER DRUGS FOR DISORDERS OF THE MUSCULO-SKELETAL SYSTEM

 N NERVOUS SYSTEM

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS