Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsopd2003 dataset : ingredient code #2 for medication | #5 | Freq. Percent Cum. ------------------------------------+----------------------------------- butalbital | 1 0.01 0.01 chloride ion | 1 0.01 0.02 magnesium acetate | 4 0.04 0.06 norethindrone | 1 0.01 0.07 pyridoxine | 4 0.04 0.11 riboflavin | 1 0.01 0.12 scopolamine hbr | 1 0.01 0.13 sodium citrate | 2 0.02 0.15 triamterene | 6 0.06 0.21 trimethoprim | 1 0.01 0.22 vitamin d | 1 0.01 0.23 vitamin e | 1 0.01 0.24 salmeterol | 6 0.06 0.30 lamivudine | 3 0.03 0.33 metformin | 1 0.01 0.34 glucosamine | 2 0.02 0.36 isophane insulin | 1 0.01 0.37 ethinyl estradiol | 1 0.01 0.38 atropine sulfate | 3 0.03 0.41 propoxyphene napsylate | 2 0.02 0.43 hydrocodone bitartrate | 14 0.14 0.57 codeine phosphate | 5 0.05 0.62 ampicillin sodium | 1 0.01 0.63 norethindrone acetate | 1 0.01 0.64 amphetamine sulfate | 1 0.01 0.65 docusate sodium | 2 0.02 0.67 oxycodone hcl | 13 0.13 0.80 albuterol sulfate | 6 0.06 0.86 timolol maleate | 1 0.01 0.87 lidocaine hcl | 1 0.01 0.88 epinephrine bitartrate | 2 0.02 0.90 promethazine hcl | 1 0.01 0.91 losartan potassium | 3 0.03 0.94 amlodipine besylate | 1 0.01 0.95 betamethasone dipropionate | 1 0.01 0.96 medroxyprogesterone acetate | 1 0.01 0.97 lisinopril | 3 0.03 1.00 misoprostol | 1 0.01 1.01 . | 9,899 98.99 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016