According to the U.S. Bureau of Labor Statistics, prices for nonprescription drugs were 0.39% lower in 2019 versus 2018 (a $0.04 difference in value).

**Between 2018 and 2019:** Nonprescription drugs experienced an average inflation rate of -0.39% per year.
In other words, nonprescription drugs costing $10 in the year 2018 would cost $9.96 in 2019 for an equivalent purchase.
Compared to the overall inflation rate of 1.70% during this same period, inflation for nonprescription drugs was
lower.

Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for *Nonprescription drugs*:

Year |
2018 | 2019 |

CPI |
96.923 | 96.547 |

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Below are calculations of equivalent buying power for Nonprescription drugs, over time, for $10 beginning in 2018. Each of the amounts below is equivalent in terms of what it could buy at the time:

Year | USD Value | Inflation Rate |
---|---|---|

2018 | $10.00 | - |

2019 | $9.96 | -0.39%* |

CPI in 2019 / CPI in 2018 * 2018 USD value = 2019 USD value

Then plug in historical CPI values from above. The CPI for Nonprescription drugs was 96.923 in the year 2018 and 96.547 in 2019:

96.547 / 96.923 * $10 =

Therefore, according to U.S. Bureau of Labor Statistics, $10 in 2018 has the same "purchasing power" as $9.96 in 2019 (in the CPI category of Nonprescription drugs).