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

 S SENSORY ORGANS

   S01 OPHTHALMOLOGICALS

     S01A ANTIINFECTIVES

       S01AA Antibiotics

       S01AB Sulfonamides

       S01AD Antivirals

       S01AE Fluoroquinolones

       S01AX Other antiinfectives

         S01AX01 Mercury compounds

         S01AX02 Silver compounds

         S01AX03 Zinc compounds

         S01AX04 Nitrofural

         S01AX05 Bibrocathol

         S01AX06 Resorcinol

         S01AX07 Sodium borate

         S01AX08 Hexamidine

         S01AX09 Chlorhexidine

         S01AX10 Sodium propionate

         S01AX14 Dibrompropamidine

         S01AX15 Propamidine

         S01AX16 Picloxydine

         S01AX18 Povidone-iodine

     S01B ANTIINFLAMMATORY AGENTS

     S01C ANTIINFLAMMATORY AGENTS AND ANTIINFECTIVES IN COMBINATION

     S01E ANTIGLAUCOMA PREPARATIONS AND MIOTICS

     S01F MYDRIATICS AND CYCLOPLEGICS

     S01G DECONGESTANTS AND ANTIALLERGICS

     S01H LOCAL ANESTHETICS

     S01J DIAGNOSTIC AGENTS

     S01K SURGICAL AIDS

     S01L OCULAR VASCULAR DISORDER AGENTS

     S01X OTHER OPHTHALMOLOGICALS

   S02 OTOLOGICALS

   S03 OPHTHALMOLOGICAL AND OTOLOGICAL PREPARATIONS

 V VARIOUS