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Pronunciation varies by accent · noun
An experimental drug for the treatment of idiopathic pulmonary fibrosis..
Use pirfenidone when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Pirfenidone means An experimental drug for the treatment of idiopathic pulmonary fibrosis..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use pirfenidone where its definition matches the intended context.
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