Frequencies for first 10,000 rows of drg3ing2 variable in nhamcsopd2004 dataset : ingredient code #2 for medication | #3 | Freq. Percent Cum. ------------------------------------+----------------------------------- acacia gum | 1 0.01 0.01 aspirin | 1 0.01 0.02 butalbital | 2 0.02 0.04 clindamycin | 1 0.01 0.05 dichloralphenazone | 1 0.01 0.06 diphenhydramine | 1 0.01 0.07 hydrochlorothiazide | 1 0.01 0.08 iodochlorhydroxyquin | 1 0.01 0.09 iodoquinol | 3 0.03 0.12 levodopa | 1 0.01 0.13 lipase | 1 0.01 0.14 magnesium acetate | 1 0.01 0.15 methenamine | 1 0.01 0.16 morphine | 1 0.01 0.17 multivitamins general | 3 0.03 0.20 mumps virus vaccine | 11 0.11 0.31 niacin | 1 0.01 0.32 pectin | 1 0.01 0.33 pertussis immune globulin | 1 0.01 0.34 pertussis vaccine | 10 0.10 0.44 petrolatum | 1 0.01 0.45 phenylephrine | 1 0.01 0.46 phenylpropanolamine | 1 0.01 0.47 polyethylene glycol | 1 0.01 0.48 prilocaine | 1 0.01 0.49 promethazine | 1 0.01 0.50 propylene glycol | 1 0.01 0.51 protein supplement | 1 0.01 0.52 pyridoxine | 23 0.23 0.75 riboflavin | 1 0.01 0.76 ringers lactated | 1 0.01 0.77 simethicone | 1 0.01 0.78 soybean oil | 2 0.02 0.80 tetanus toxoid | 2 0.02 0.82 tetracaine | 2 0.02 0.84 tobramycin | 1 0.01 0.85 triamterene | 3 0.03 0.88 trimethoprim | 8 0.08 0.96 vitamin a | 1 0.01 0.97 vitamin b-12 | 3 0.03 1.00 vitamin d | 3 0.03 1.03 water sterile | 1 0.01 1.04 zinc topical agents, external use | 1 0.01 1.05 haemophilus b conjugate vaccine | 2 0.02 1.07 loratadine | 2 0.02 1.09 salmeterol | 17 0.17 1.26 lamivudine | 2 0.02 1.28 metformin | 1 0.01 1.29 valsartan | 1 0.01 1.30 irbesartan | 1 0.01 1.31 glucosamine | 1 0.01 1.32 rosiglitazone maleate | 1 0.01 1.33 ethinyl estradiol | 10 0.10 1.43 magnesium hydroxide | 1 0.01 1.44 atropine sulfate | 3 0.03 1.47 propoxyphene napsylate | 6 0.06 1.53 lopinavir | 3 0.03 1.56 magnesium chelate | 1 0.01 1.57 aloe vera | 1 0.01 1.58 polymyxin b sulfate | 1 0.01 1.59 hydrocodone bitartrate | 18 0.18 1.77 chlorpheniramine maleate | 1 0.01 1.78 codeine phosphate | 13 0.13 1.91 phenylpropanolamine hcl | 1 0.01 1.92 amphetamine sulfate | 2 0.02 1.94 docusate sodium | 3 0.03 1.97 oxycodone hcl | 12 0.12 2.09 tramadol hcl | 1 0.01 2.10 triamcinolone acetonide | 1 0.01 2.11 quinapril hcl | 1 0.01 2.12 fexofenadine hcl | 3 0.03 2.15 dextromethorphan hbr | 1 0.01 2.16 clavulanate potassium | 1 0.01 2.17 arginine hcl | 1 0.01 2.18 phenylephrine hcl | 1 0.01 2.19 albuterol sulfate | 3 0.03 2.22 neomycin sulfate | 2 0.02 2.24 carbinoxamine maleate | 2 0.02 2.26 pyrilamine tannate | 1 0.01 2.27 promethazine hcl | 1 0.01 2.28 trimethoprim sulfate | 1 0.01 2.29 norelgestromin | 2 0.02 2.31 losartan potassium | 3 0.03 2.34 amlodipine besylate | 2 0.02 2.36 hydrocodone polistirex | 1 0.01 2.37 etonogestrel | 1 0.01 2.38 lisinopril | 3 0.03 2.41 misoprostol | 1 0.01 2.42 . | 9,758 97.58 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016