Frequencies for first 10,000 rows of drg2ing1 variable in nhamcsopd2003 dataset : ingredient code #1 for medication | #2 | Freq. Percent Cum. ------------------------------------+----------------------------------- levonorgestrel | 5 0.05 0.05 acetaminophen | 91 0.91 0.96 aluminum hydroxide | 1 0.01 0.97 aluminum sulfate | 1 0.01 0.98 amoxicillin | 9 0.09 1.07 antipyrine | 6 0.06 1.13 aspirin | 3 0.03 1.16 bacitracin | 2 0.02 1.18 balsam | 1 0.01 1.19 benazepril hydrochloride | 3 0.03 1.22 benzocaine | 3 0.03 1.25 benzoic acid | 1 0.01 1.26 benzoyl peroxide | 1 0.01 1.27 calamine | 2 0.02 1.29 calcium | 3 0.03 1.32 calcium carbonate | 1 0.01 1.33 calcium ion | 2 0.02 1.35 carbidopa | 1 0.01 1.36 carmellose | 1 0.01 1.37 chlorpheniramine | 1 0.01 1.38 clidinium bromide | 1 0.01 1.39 clotrimazole | 1 0.01 1.40 codeine | 2 0.02 1.42 cytarabine | 1 0.01 1.43 dexamethasone | 2 0.02 1.45 dexpanthenol | 1 0.01 1.46 dextromethorphan | 4 0.04 1.50 dextrose | 8 0.08 1.58 diphtheria toxoid | 23 0.23 1.81 enalapril | 1 0.01 1.82 epinephrine | 1 0.01 1.83 ergocalciferol | 35 0.35 2.18 estrogens | 4 0.04 2.22 fluticasone propionate | 11 0.11 2.33 glyburide | 4 0.04 2.37 guaifenesin | 16 0.16 2.53 hepatitis b vaccine | 4 0.04 2.57 hydrochlorothiazide | 20 0.20 2.77 hydrocortisone | 5 0.05 2.82 ipratropium bromide | 7 0.07 2.89 measles virus vaccine | 8 0.08 2.97 mineral oil | 1 0.01 2.98 multivitamins general | 15 0.15 3.13 multivitamins | 2 0.02 3.15 norethindrone | 2 0.02 3.17 norgestrel | 1 0.01 3.18 papain | 1 0.01 3.19 phenobarbital | 1 0.01 3.20 pseudoephedrine | 1 0.01 3.21 psyllium | 1 0.01 3.22 pyridoxine | 1 0.01 3.23 sodium phosphate | 1 0.01 3.24 sulbactin sodium | 1 0.01 3.25 sulfamethoxazole | 16 0.16 3.41 vitamin c | 1 0.01 3.42 vitamin e | 1 0.01 3.43 zidovudine | 10 0.10 3.53 vitamin b complex | 1 0.01 3.54 norgestimate | 3 0.03 3.57 dorzolamide hcl | 4 0.04 3.61 ritonavir | 3 0.03 3.64 trandolapril | 1 0.01 3.65 ethinyl estradiol | 2 0.02 3.67 triprolidine hcl | 1 0.01 3.68 polymyxin b sulfate | 6 0.06 3.74 chlorpheniramine maleate | 1 0.01 3.75 brompheniramine maleate | 4 0.04 3.79 phenylpropanolamine hcl | 2 0.02 3.81 pseudoephedrine hcl | 11 0.11 3.92 amphetamine aspartate | 11 0.11 4.03 hydrocortisone acetate | 2 0.02 4.05 bupivacaine hcl | 7 0.07 4.12 chlorpheniramine tannate | 1 0.01 4.13 chlorpheniramin polistirex | 1 0.01 4.14 . | 9,586 95.86 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016