大たい衆しゅう薬やく

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Meanings

1

noun

Refers to non-prescription medicines available at pharmacies and drugstores.

large, big

衆masses, great numbers, multitude

薬medicine, chemical, enamel

処しょ方ほう薬やく
処方薬 is a prescription drug, while 大衆薬 is an over-the-counter drug available without a prescription.
市し販はん薬やく
市販薬 is a near-synonym for over-the-counter drug, often used interchangeably with 大衆薬.

Compound of 大衆 (general public) and 薬 (medicine), literally 'medicine for the general public'.