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This study explores the variation in medicine prices across different countries, shedding light on the complexities of global drug markets from a consumer perspective. Analyzing single drug comparisons, such as median price ratios (MPR) and affordability (days of wages for standard treatments), offers crucial insights for principal investigators and health policy discussions. By examining local policy nuances and challenges like currency fluctuations and market dynamics, the research aims to provide a clearer understanding of price discrepancies and enhance the effectiveness of global health strategies.
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Why compare across countries? • Principal investigators want to know how their results differ from other countries’ results • WHO/HAI and external users want to • describe world drug markets from consumer perspective • inform global drug policy discussions • examine variations in results in light of differences in local policy environments
What can we compare? • Single drug comparisons, e.g.: • MPR – ratio of median price found to international reference price, in USD • affordability – # days wages for std. tx. • Summary statisticsacross many drugs in each country, e.g.: • median MPR for all innovators at retail • interquartile range of MPRs
Most Sold Generic Innovator Brand Median Price Ratios for Nifedipine (Retail)
Most Sold Generic Innovator Brand Days’ Wages for Nifedipine Tx (Retail)
Summary stats: Retail MPR medians & IQRs, Innovator Brand Most Sold Generic
Challenges of cross-country comparisons… Single-drug comparisons • WHO/HAI core list of 30 drugs • Opportunities for 1-drug comparisons • However: • local epidemiological profiles differ • local treatment approaches differ • national registration & patent status differ market share & role for drug differ
Economic vagaries • currency exchange rate, currency values • purchasing power • generosity of min. government wage • Name-brand drugs • source & country of origin vary • quality may vary? • “Lowest priced” generics • names not specified • names vary within, between countries • quality varies – how much?
Challenges of cross-country comparisons… Summary stats over many drugs • Variations in lists of drugs surveyed • core substance or strength not available • local supplementary drugs • To keep in mind: • multi-drug summary statistics are crude indices only • nevertheless, orders of magnitude are probably meaningful
Median Price Ratios for omeprazole Most Sold Generic Innovator Brand
Caveats for making cross-country comparisons… • Single-drug comparisons: • good validity • but still not perfect • Multi-drug comparisons: • less valid when lists differ • matched drugs always more valid • but matching drugs smaller sample (less reliable)
Caveats for making cross-country comparisons… • Give typical values, not extremes • Large differences more likely “real” than small differences • Be as transparent as possible • append details underlying analyses • post drug names & origins on HAI web • Use cautious language • Starting point only keep digging
WHO/HAI survey in Rajasthan, IndiaWeb-based pharmacies for US consumers, in US vs. abroad(using LPG)
8 Pilot Surveys + India + US websitesMedians and IQRs of MPRs(Private For-Profit)
Lowest Priced Generics – Prices to PtsMedians and IQRs of MPRs Public Sector Mission Sector
Public Procurement Prices for GenericsMedians and IQRs of MPRs * pub. teaching hosps buying on local private market