Which preposition to use with drenche

of Occurrences 2%

I therefore went on drinking water on the authority of Celsus; or, to speak in scientific terms, I began to drown the bile in copious drenches of that unadulterated liquor; and though I felt my self more out of order from day to day, prejudice won the cause against experience.

in Occurrences 1%

So he takes upon him to set his face against watery drenches in dropsical cases?

Which preposition to use with  drenche