Variability of Retail Pricing of Generic Urologic Medications in a Major US Metropolitan Area

Urology
Perry J XuSameer A Siddiqui

Abstract

To investigate retail pricing for generic urologic medications in the St. Louis area as a function of pharmacy type, zip-code, and median income. Pharmacies spanning 51 zip-codes were identified. From May-June 2017, pharmacies were inquired regarding cost, without insurance, for 30- and 90-tablet prices for finasteride 5 mg, tamsulosin 0.4 mg, oxybutynin 5 mg, and oxybutynin extended release (ER) 5 mg and 10 mg. Median income was determined using US census data. K-means clustering defined groupings based on zip-code, median income, and a combination of the two. Pricing between groups and pharmacy type was compared using Kruskal-Wallis and Wilcoxon rank-sum tests. Associations between pricing and median income were tested using Spearman's rho. 152 chain and 16 independent pharmacies provided data. Retail pricing for generic urologic medications did not vary as a function of zip-code, median income, or a combination of the two. There was a significant difference in the pricing of tamsulosin 0.4 mg, and oxybutynin ER 5 mg and 10 mg based on pharmacy type, where independent pharmacies have significantly lower prices compared to chain (P = .00-.00003). Pricing for generic urologic medications demonstrated wide variability at the ret...Continue Reading

Citations

Jun 21, 2019·Current Urology Reports·Molly E DeWitt-FoyJames C Ulchaker

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