anchor.diff:  202,"Atropine Eye Ointment 1%"
   203,"Atropine Injection"
   204,"Aureocort Ointment"
  -205,"Azathioprine Infusion [IS]"
  -206,"Azathioprine Injection [IS]"
  -207,"Azathioprine Suspension [IS]"
  -208,"Azathioprine Tablet [IS]"
  +205,"Azathioprine Infusion"
  +206,"Azathioprine Injection"
  +207,"Azathioprine Suspension"
  +208,"Azathioprine Tablet"
   209,"Azelaic Acid Cream 20%"
   210,"Azelastine Nasal Spray 140mcg"
   211,"Azithromycin  Capsule"
  
positive.code: 509,"Choline Salicylate Gel"
  510,"Chorionic Gonadotrophin Injection"
  511,"Ciclesonide Inhaler"
  512,"Ciclosporin Capsule (Neoral) [IS]"
  513,"Ciclosporin Infusion"
  514,"Ciclosporin Ophthalmic Emulsion 0.05%"
  515,"Ciclosporin Oral Solution (Neoral) [IS]"
  516,"Cidofovir Infusion"
  517,"Cilest Tablet"
  518,"Cimetidine  Tablet"
  
negative.code: 669,"Cyclopentolate Eye Drop 1%"
  670,"Cyclopentolate Minims 0.5%"
  671,"Cyclopentolate Minims 1%"
  672,"Cyclophosphamide Injection"
  673,"Cyclophosphamide Pre-Filled Syringe"
  674,"Cyclophosphamide Tablet"
  675,"Cycloserine Capsule"
  676,"Cyproheptadine Tablet"
  677,"Cyproterone Acetate Tablet"
  