Interested in Language
In the past, this drug has been used in the treatment of patients with disease such as XXX and YYY. However, regionally, it currently has very limited or no clinical use in these settings as more recent therapies have better risk/benefit profiles in these disease settings.
I was wondering if it should be was used instead of has been used because the author is talking about the past.
Is has been used correct?
Just to add an AmE perspective -- "has been used" is the usage I would expect here. "was used" breaks the connotation of the perfect tense and indicates no more usage.
Either is correct but again, my natural choice for the description of the usage of the drug is the perfect tense -- just think about what you're trying to describe.
Not a teacher - AmE native