Usage History of 'triptans'

The following chart shows how frequently 'triptans' appeared in printed materials over time. For example, the word 'triptans' occurred 3 times in books in 1990 and 3,339 times in 2008. From 1990 to 2008, the word 'triptans' was used a total of 23,510 times in books scanned by Google. See Reference: Google Ngram project.

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