Frequencies for first 10,000 rows of drg2ing2 variable in nhamcsopd2005 dataset : ingredient code #2 for medication #2 | Freq. Percent Cum. -------------------------------------+----------------------------------- acacia gum | 2 0.02 0.02 benzocaine | 2 0.02 0.04 butalbital | 3 0.03 0.07 carbetapentane | 1 0.01 0.08 cetylpyridinium | 1 0.01 0.09 chloride ion | 1 0.01 0.10 dexamethasone | 1 0.01 0.11 dextromethorphan | 1 0.01 0.12 dichloralphenazone | 1 0.01 0.13 dimethicone | 5 0.05 0.18 diphenhydramine | 1 0.01 0.19 dipyridamole | 1 0.01 0.20 erythromycin | 1 0.01 0.21 fluorescein | 1 0.01 0.22 guaifenesin | 2 0.02 0.24 dihydrocodeine | 1 0.01 0.25 hydrocodone | 4 0.04 0.29 hyoscyamine | 1 0.01 0.30 iodochlorhydroxyquin | 1 0.01 0.31 levodopa | 1 0.01 0.32 lipase | 1 0.01 0.33 methyl salicylate | 1 0.01 0.34 methyltestosterone | 2 0.02 0.36 multivitamins general | 3 0.03 0.39 multivitamins | 1 0.01 0.40 mumps virus vaccine | 11 0.11 0.51 naloxone | 1 0.01 0.52 niacin | 3 0.03 0.55 norethindrone | 1 0.01 0.56 pancreatin | 1 0.01 0.57 pertussis vaccine | 15 0.15 0.72 petrolatum | 8 0.08 0.80 phenylephrine | 5 0.05 0.85 prilocaine | 1 0.01 0.86 promethazine | 3 0.03 0.89 propylene glycol | 1 0.01 0.90 pseudoephedrine | 7 0.07 0.97 pyridoxine | 71 0.71 1.68 resorcinol | 1 0.01 1.69 riboflavin | 2 0.02 1.71 ringers lactated | 1 0.01 1.72 scopolamine hbr | 1 0.01 1.73 simethicone | 3 0.03 1.76 sodium chloride | 4 0.04 1.80 sodium citrate | 3 0.03 1.83 sodium fluoride | 2 0.02 1.85 sodium hydroxide | 1 0.01 1.86 soybean oil | 3 0.03 1.89 tetanus toxoid | 6 0.06 1.95 tobramycin | 1 0.01 1.96 triamterene | 4 0.04 2.00 trimethoprim | 13 0.13 2.13 trypsin | 3 0.03 2.16 urea | 7 0.07 2.23 vitamin a | 1 0.01 2.24 vitamin b-12 | 2 0.02 2.26 vitamin d | 4 0.04 2.30 haemophilus b conjugate vaccine | 1 0.01 2.31 loratadine | 1 0.01 2.32 salmeterol | 29 0.29 2.61 lamivudine | 14 0.14 2.75 fat | 1 0.01 2.76 metformin | 1 0.01 2.77 vitamins | 1 0.01 2.78 atorvastatin calcium | 1 0.01 2.79 sodium biphosphate | 1 0.01 2.80 irbesartan | 2 0.02 2.82 rosiglitazone maleate | 3 0.03 2.85 isophane insulin | 1 0.01 2.86 ethinyl estradiol | 11 0.11 2.97 abacavir sulfate | 1 0.01 2.98 zinc oxide | 1 0.01 2.99 ascorbic acid | 1 0.01 3.00 magnesium hydroxide | 3 0.03 3.03 atropine sulfate | 3 0.03 3.06 propoxyphene napsylate | 12 0.12 3.18 lopinavir | 7 0.07 3.25 polymyxin b sulfate | 4 0.04 3.29 bacitracin zinc | 4 0.04 3.33 hydrocodone bitartrate | 55 0.55 3.88 chlorpheniramine maleate | 2 0.02 3.90 codeine phosphate | 18 0.18 4.08 phenylpropanolamine hcl | 2 0.02 4.10 pseudoephedrine hcl | 13 0.13 4.23 amphetamine sulfate | 4 0.04 4.27 docusate sodium | 1 0.01 4.28 oxycodone hcl | 30 0.30 4.58 tramadol hcl | 5 0.05 4.63 triamcinolone acetonide | 1 0.01 4.64 normal saline | 2 0.02 4.66 fexofenadine hcl | 2 0.02 4.68 pramoxine hcl | 1 0.01 4.69 dextromethorphan hbr | 1 0.01 4.70 clavulanate potassium | 26 0.26 4.96 phenylephrine hcl | 1 0.01 4.97 albuterol sulfate | 8 0.08 5.05 neomycin sulfate | 3 0.03 5.08 timolol maleate | 2 0.02 5.10 cyclopentolate hcl | 1 0.01 5.11 carbinoxamine maleate | 7 0.07 5.18 drospirenone | 2 0.02 5.20 trimethoprim sulfate | 1 0.01 5.21 cadexomer iodine | 1 0.01 5.22 ezetimibe | 5 0.05 5.27 verapamil hcl | 1 0.01 5.28 betamethasone dipropionate | 2 0.02 5.30 sulfisoxazole acetyl | 1 0.01 5.31 medroxyprogesterone acetate | 2 0.02 5.33 etonogestrel | 1 0.01 5.34 diphenhydramine tannate | 17 0.17 5.51 iron | 1 0.01 5.52 tenofovir | 3 0.03 5.55 fluoxetine hydrochloride | 1 0.01 5.56 lisinopril | 5 0.05 5.61 misoprostol | 1 0.01 5.62 . | 9,438 94.38 100.00 -------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016