1  Agents affecting nervous system and sensory organs

 2  Agents affecting individual organs

 3  Agents affecting metabolism

   31  Vitamins

     311  Vitamins A and D preparations

     312  Vitamin B1 preparations

     313  Vitamin B preparations

       3131  Vitamin B2 preparations

       3132  Nicotinic acids

       3133  Pantothenic acids

       3134  Vitamin B6 preparations

       3135  Folic acids

       3136  Vitamin B12 preparations

       3137  Vitamin B complex preparations

       3139  Others

     314  Vitamin C preparations

     315  Vitamin E preparations

     316  Vitamin K preparations

     317  Multivitamin preparations

     319  Miscellaneous vitamins

   32  Nutrients, tonics

   33  Blood and body fluid agents

   34  Dialysis agents

   39  Other agents affecting metabolism

 4  Agents affecting cellular function

 5  Crude drugs and Chinese medicine formulations

 6  Agents against pathologic organisms and parasites

 7  Agents not mainly for therapeutic purpose

 8  Narcotics