Frequencies for first 10,000 rows of med25 variable in namcs2014 dataset :

                         Medication #25 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                          NO ENTRY MADE |      9,980       99.80       99.80
                               TRAVATAN |          1        0.01       99.81
                            CHOLEST-OFF |          1        0.01       99.82
                   LIDOCAINE/PRILOCAINE |          1        0.01       99.83
                              CLONIDINE |          1        0.01       99.84
                             VITAMIN D3 |          2        0.02       99.86
                                PHOSPHA |          1        0.01       99.87
                                 DULERA |          1        0.01       99.88
                            GUAIFENESIN |          1        0.01       99.89
                             ROBITUSSIN |          1        0.01       99.90
                                VICODIN |          1        0.01       99.91
                               VOLTAREN |          1        0.01       99.92
                    POLYETHYLENE GLYCOL |          1        0.01       99.93
                                 ZANTAC |          2        0.02       99.95
                             RANITIDINE |          1        0.01       99.96
                                 ULTRAM |          1        0.01       99.97
                               TRAMADOL |          1        0.01       99.98
                                MIRALAX |          1        0.01       99.99
                              ALBUTEROL |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017