The other active ingredient in Darvocet is acetaminophen (commonly known as APAP). It is a pain reliever and fever reducer commonly found in non-prescription medications such as Tylenol. Adding acetaminophen to propoxyphene increases the effectiveness for relieving pain and also provides fever-reducing properties.
1 Skill or expertise in a particular activity or field: his prowess as a fisherman her culinary prowess. More example sentences. Synonyms. 1  And his fame has nothing whatsoever to do with his prowess on the football field or in the political arena.
Proficient definition, well-advanced or competent in any art, science, or subject; skilled: a proficient swimmer. See more.