A ALIMENTARY TRACT AND METABOLISM

 B BLOOD AND BLOOD FORMING ORGANS

 C CARDIOVASCULAR SYSTEM

   C01 CARDIAC THERAPY

   C02 ANTIHYPERTENSIVES

   C03 DIURETICS

   C04 PERIPHERAL VASODILATORS

     C04A PERIPHERAL VASODILATORS

       C04AA 2-amino-1-phenylethanol derivatives

       C04AB Imidazoline derivatives

       C04AC Nicotinic acid and derivatives

       C04AD Purine derivatives

       C04AE Ergot alkaloids

         C04AE01 Ergoloid mesylates

         C04AE02 Nicergoline [DG:DG00283]

         C04AE04 Dihydroergocristine [DG:DG00284]

         C04AE51 Ergoloid mesylates, combinations

         C04AE54 Dihydroergocristine, combinations

       C04AF Enzymes

       C04AX Other peripheral vasodilators

   C05 VASOPROTECTIVES

   C07 BETA BLOCKING AGENTS

   C08 CALCIUM CHANNEL BLOCKERS

   C09 AGENTS ACTING ON THE RENIN-ANGIOTENSIN SYSTEM

   C10 LIPID MODIFYING AGENTS

 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

 N NERVOUS SYSTEM

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS