A ALIMENTARY TRACT AND METABOLISM

 B BLOOD AND BLOOD FORMING ORGANS

 C CARDIOVASCULAR SYSTEM

   C01 CARDIAC THERAPY

   C02 ANTIHYPERTENSIVES

     C02A ANTIADRENERGIC AGENTS, CENTRALLY ACTING

       C02AA Rauwolfia alkaloids [DG:DG01737]

       C02AB Methyldopa

       C02AC Imidazoline receptor agonists

         C02AC01 Clonidine [DG:DG00249]

         C02AC02 Guanfacine [DG:DG00250]

         C02AC04 Tolonidine

         C02AC05 Moxonidine

         C02AC06 Rilmenidine

     C02B ANTIADRENERGIC AGENTS, GANGLION-BLOCKING

     C02C ANTIADRENERGIC AGENTS, PERIPHERALLY ACTING

     C02D ARTERIOLAR SMOOTH MUSCLE, AGENTS ACTING ON

     C02K OTHER ANTIHYPERTENSIVES

     C02L ANTIHYPERTENSIVES AND DIURETICS IN COMBINATION

     C02N COMBINATIONS OF ANTIHYPERTENSIVES IN ATC-GR. C02

   C03 DIURETICS

   C04 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