Which preposition to use with tranquillized

in Occurrences 1%

May I not be tranquillized in my conscience, that in speaking thus I commit no disloyal act, and do in no way offend against the high veneration due from me to your constituted authorities?

as Occurrences 1%

" Valentine, now a little tranquillized as to her fears for herself, found strength to speak out.

Which preposition to use with  tranquillized