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

 N NERVOUS SYSTEM

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

   R01 NASAL PREPARATIONS

   R02 THROAT PREPARATIONS

   R03 DRUGS FOR OBSTRUCTIVE AIRWAY DISEASES

   R05 COUGH AND COLD PREPARATIONS

     R05C EXPECTORANTS, EXCL. COMBINATIONS WITH COUGH SUPPRESSANTS

     R05D COUGH SUPPRESSANTS, EXCL. COMBINATIONS WITH EXPECTORANTS

       R05DA Opium alkaloids and derivatives

       R05DB Other cough suppressants

         R05DB01 Benzonatate

         R05DB02 Benproperine [DG:DG01081]

         R05DB03 Clobutinol [DG:DG01082]

         R05DB04 Isoaminile [DG:DG01083]

         R05DB05 Pentoxyverine [DG:DG01084]

         R05DB07 Oxolamine [DG:DG01085]

         R05DB09 Oxeladin [DG:DG01086]

         R05DB10 Clofedanol [DG:DG01087]

         R05DB11 Pipazetate

         R05DB12 Bibenzonium bromide

         R05DB13 Butamirate [DG:DG01088]

         R05DB14 Fedrilate

         R05DB15 Zipeprol

         R05DB16 Dibunate [DG:DG01089]

         R05DB17 Droxypropine

         R05DB18 Prenoxdiazine [DG:DG01090]

         R05DB19 Dropropizine

         R05DB20 Combinations

         R05DB21 Cloperastine [DG:DG01091]

         R05DB22 Meprotixol

         R05DB23 Piperidione

         R05DB24 Tipepidine [DG:DG01092]

         R05DB25 Morclofone

         R05DB26 Nepinalone

         R05DB27 Levodropropizine

         R05DB28 Dimethoxanate [DG:DG01093]

         R05DB29 Gefapixant [DG:DG03083]

     R05F COUGH SUPPRESSANTS AND EXPECTORANTS, COMBINATIONS

     R05X OTHER COLD PREPARATIONS

   R06 ANTIHISTAMINES FOR SYSTEMIC USE

   R07 OTHER RESPIRATORY SYSTEM PRODUCTS

 S SENSORY ORGANS

 V VARIOUS