Frequencies for first 10,000 rows of drug7cl1 variable in nhamcsed2005 dataset :

          ndc code #1 for medication #7 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
      adjuncts to anesthesia/analeptics |          3        0.03        0.03
                    antidotes, specific |          1        0.01        0.04
                            penicillins |          4        0.04        0.08
                         cephalosporins |          5        0.05        0.13
  erythromycins/lincosamides/macrolides |          4        0.04        0.17
              urinary tract antiseptics |          4        0.04        0.21
     miscellaneous antibacterial agents |          1        0.01        0.22
                 quinolones/derivatives |          6        0.06        0.28
                       antiviral agents |          1        0.01        0.29
                     deficiency anemias |          5        0.05        0.34
           anticoagulants/thrombolytics |          5        0.05        0.39
                     cardiac glycosides |          4        0.04        0.43
                  antiarrhythmic agents |          1        0.01        0.44
                     antianginal agents |          3        0.03        0.47
vascular disorders, cerebral/peripheral |          1        0.01        0.48
                antihypertensive agents |          5        0.05        0.53
                              diuretics |          5        0.05        0.58
               calcium channel blockers |          5        0.05        0.63
                          beta blockers |          4        0.04        0.67
           alpha agonist/alpha blockers |          1        0.01        0.68
                         ace inhibitors |          3        0.03        0.71
                sedatives and hypnotics |          5        0.05        0.76
                     antianxiety agents |          5        0.05        0.81
               antipsychotic/antimanics |          2        0.02        0.83
                        antidepressants |          3        0.03        0.86
                     cns, miscellaneous |          1        0.01        0.87
                alzheimer-type dementia |          1        0.01        0.88
                 disorders, acid/peptic |         19        0.19        1.07
                         antidiarrheals |          1        0.01        1.08
                              laxatives |          4        0.04        1.12
        miscellaneous gastrointestinals |          1        0.01        1.13
                               antacids |          1        0.01        1.14
                         hyperlipidemia |          2        0.02        1.16
                      vitamins/minerals |          3        0.03        1.19
          nutrition, enteral/parenteral |          1        0.01        1.20
repl/regs of electrolytes/water balance |          7        0.07        1.27
                adrenal corticosteroids |          4        0.04        1.31
                   estrogens/progestins |          2        0.02        1.33
               blood glucose regulators |          2        0.02        1.35
                    thyroid/antithyroid |          3        0.03        1.38
                       immunomodulators |          1        0.01        1.39
                   dermatologics, misc. |          1        0.01        1.40
          skeletal muscle hyperactivity |          2        0.02        1.42
                        anticonvulsants |          3        0.03        1.45
         antineoplastics, miscellaneous |          1        0.01        1.46
                               glaucoma |          2        0.02        1.48
       vertigo/motion sickness/vomiting |          2        0.02        1.50
                   analgesics, narcotic |         17        0.17        1.67
               analgesics, non-narcotic |          7        0.07        1.74
                               antigout |          1        0.01        1.75
                                  nsaid |          5        0.05        1.80
                         antiprotozoals |          1        0.01        1.81
         antiasthmatics/bronchodilators |          8        0.08        1.89
                         antihistamines |          4        0.04        1.93
        corticosteroid-inhalation/nasal |          1        0.01        1.94
                           unclassified |          1        0.01        1.95
                                      . |      9,805       98.05      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016