A ALIMENTARY TRACT AND METABOLISM

 B BLOOD AND BLOOD FORMING ORGANS

 C CARDIOVASCULAR SYSTEM

   C01 CARDIAC THERAPY

   C02 ANTIHYPERTENSIVES

     C02A ANTIADRENERGIC AGENTS, CENTRALLY ACTING

     C02B ANTIADRENERGIC AGENTS, GANGLION-BLOCKING

     C02C ANTIADRENERGIC AGENTS, PERIPHERALLY ACTING

     C02D ARTERIOLAR SMOOTH MUSCLE, AGENTS ACTING ON

     C02K OTHER ANTIHYPERTENSIVES

       C02KA Alkaloids, excl. rauwolfia

       C02KB Tyrosine hydroxylase inhibitors

       C02KC MAO inhibitors

       C02KD Serotonin antagonists

         C02KD01 Ketanserin [DG:DG00265]

       C02KN Other antihypertensives

       C02KX Antihypertensives for pulmonary arterial hypertension

     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