Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsed2004 dataset : ingredient code #2 for medication | #4 | Freq. Percent Cum. ------------------------------------+----------------------------------- acacia gum | 1 0.01 0.01 benzocaine | 4 0.04 0.05 butalbital | 1 0.01 0.06 calcium carbonate | 1 0.01 0.07 cascara | 1 0.01 0.08 chloride ion | 1 0.01 0.09 diphenhydramine | 1 0.01 0.10 niacin | 1 0.01 0.11 nystatin | 1 0.01 0.12 oxycodone | 1 0.01 0.13 phenobarbital | 3 0.03 0.16 phenylephrine | 1 0.01 0.17 promethazine | 1 0.01 0.18 propoxyphene | 2 0.02 0.20 propylene glycol | 1 0.01 0.21 pyridoxine | 6 0.06 0.27 ringers lactated | 2 0.02 0.29 scopolamine hbr | 14 0.14 0.43 tetanus toxoid | 5 0.05 0.48 trimethoprim | 8 0.08 0.56 vitamin b-12 | 1 0.01 0.57 vitamin c | 1 0.01 0.58 water sterile | 1 0.01 0.59 vitamin b complex | 1 0.01 0.60 salmeterol | 8 0.08 0.68 metformin | 1 0.01 0.69 sodium biphosphate | 1 0.01 0.70 rosiglitazone maleate | 1 0.01 0.71 isophane insulin | 1 0.01 0.72 magnesium hydroxide | 9 0.09 0.81 atropine sulfate | 2 0.02 0.83 propoxyphene napsylate | 5 0.05 0.88 polymyxin b sulfate | 1 0.01 0.89 bacitracin zinc | 2 0.02 0.91 hydrocodone bitartrate | 84 0.84 1.75 codeine phosphate | 4 0.04 1.79 ampicillin sodium | 1 0.01 1.80 pseudoephedrine hcl | 2 0.02 1.82 oxycodone hcl | 25 0.25 2.07 tramadol hcl | 3 0.03 2.10 clavulanate potassium | 7 0.07 2.17 albuterol sulfate | 6 0.06 2.23 carbinoxamine maleate | 3 0.03 2.26 phenylephrine tannate | 2 0.02 2.28 promethazine hcl | 1 0.01 2.29 water | 1 0.01 2.30 losartan potassium | 1 0.01 2.31 amlodipine besylate | 1 0.01 2.32 sulfisoxazole acetyl | 1 0.01 2.33 clemastine fumarate | 1 0.01 2.34 ticarcillin disodium | 1 0.01 2.35 hydrocodone polistirex | 1 0.01 2.36 tazobactam sodium | 1 0.01 2.37 . | 9,763 97.63 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016