(redirected from Pregnant mares' urine)
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A trademark for a drug preparation of conjugated estrogens.


(ˈprɛm ə rɪn)
Trademark. a brand name for a mixture of conjugated natural estrogens used chiefly for estrogen replacement therapy.
References in periodicals archive ?
I want to thank you for helping to alert the public to the dangers -- to horses as well as to women -- that have come with the use of pregnant mares' urine as a source of human treatment," Steinem wrote.
The name of the medication, Premarin, came from its origins: PREgnant MARes' urINe.
As the name indicates, it is made from PREgnant MAres' uRINe.
There exists a clinical preparation of conjugated estrogens that does come from pregnant mares' urine, Premarin.