Frequencies for first 10,000 rows of drg2ing2 variable in nhamcsopd2003 dataset : ingredient code #2 for medication | #2 | Freq. Percent Cum. ------------------------------------+----------------------------------- acacia gum | 2 0.02 0.02 aspirin | 2 0.02 0.04 benzocaine | 6 0.06 0.10 bismuth, external | 1 0.01 0.11 calcium acetate | 1 0.01 0.12 chloride ion | 2 0.02 0.14 daunorubicin | 1 0.01 0.15 diphenhydramine | 1 0.01 0.16 dipyridamole | 2 0.02 0.18 erythromycin | 1 0.01 0.19 gelatin | 1 0.01 0.20 guaifenesin | 4 0.04 0.24 hydrochlorothiazide | 1 0.01 0.25 hydrocodone | 1 0.01 0.26 hydrocortisone | 1 0.01 0.27 iodochlorhydroxyquin | 1 0.01 0.28 levodopa | 1 0.01 0.29 magnesium acetate | 8 0.08 0.37 methenamine | 1 0.01 0.38 mumps virus vaccine | 8 0.08 0.46 neomycin | 2 0.02 0.48 niacin | 1 0.01 0.49 pertussis vaccine | 20 0.20 0.69 petrolatum | 1 0.01 0.70 phenylephrine | 2 0.02 0.72 phenylpropanolamine | 1 0.01 0.73 promethazine | 1 0.01 0.74 pseudoephedrine | 6 0.06 0.80 pyridoxine | 35 0.35 1.15 riboflavin | 1 0.01 1.16 senna | 1 0.01 1.17 spironolactone | 3 0.03 1.20 tetanus toxoid | 3 0.03 1.23 tetracaine | 3 0.03 1.26 triamterene | 6 0.06 1.32 trimethoprim | 16 0.16 1.48 urea | 1 0.01 1.49 vitamin d | 4 0.04 1.53 vitamin e | 1 0.01 1.54 vitamin b | 1 0.01 1.55 haemophilus b conjugate vaccine | 4 0.04 1.59 loratadine | 1 0.01 1.60 salmeterol | 11 0.11 1.71 bisoprolol fumarate | 2 0.02 1.73 lamivudine | 10 0.10 1.83 protein | 1 0.01 1.84 metformin | 4 0.04 1.88 valsartan | 1 0.01 1.89 sodium biphosphate | 1 0.01 1.90 ethinyl estradiol | 9 0.09 1.99 magnesium hydroxide | 1 0.01 2.00 propoxyphene napsylate | 3 0.03 2.03 lopinavir | 3 0.03 2.06 polymyxin b sulfate | 5 0.05 2.11 hydrocodone bitartrate | 46 0.46 2.57 chlorpheniramine maleate | 1 0.01 2.58 codeine phosphate | 11 0.11 2.69 ampicillin sodium | 1 0.01 2.70 norethindrone acetate | 1 0.01 2.71 methscopolamine nitrate | 1 0.01 2.72 phenylpropanolamine hcl | 4 0.04 2.76 pseudoephedrine hcl | 5 0.05 2.81 amphetamine sulfate | 11 0.11 2.92 oxycodone hcl | 27 0.27 3.19 tramadol hcl | 3 0.03 3.22 fexofenadine hcl | 3 0.03 3.25 pramoxine hcl | 4 0.04 3.29 dextromethorphan hbr | 2 0.02 3.31 clavulanate potassium | 9 0.09 3.40 ergotamine tartrate | 1 0.01 3.41 chlordiazepoxide hcl | 1 0.01 3.42 albuterol sulfate | 7 0.07 3.49 neomycin sulfate | 4 0.04 3.53 timolol maleate | 4 0.04 3.57 lidocaine hcl | 1 0.01 3.58 epinephrine bitartrate | 7 0.07 3.65 pyrilamine maleate | 2 0.02 3.67 carbinoxamine maleate | 5 0.05 3.72 phenylephrine tannate | 1 0.01 3.73 trimethoprim sulfate | 2 0.02 3.75 norelgestromin | 1 0.01 3.76 cetirizine hcl | 3 0.03 3.79 verapamil hcl | 1 0.01 3.80 losartan potassium | 5 0.05 3.85 amlodipine besylate | 3 0.03 3.88 betamethasone dipropionate | 1 0.01 3.89 medroxyprogesterone acetate | 4 0.04 3.93 hydrocodone polistirex | 1 0.01 3.94 enalapril maleate | 1 0.01 3.95 lisinopril | 2 0.02 3.97 . | 9,603 96.03 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016