Usage History of 'triptan'

The following chart shows how frequently 'triptan' appeared in printed materials over time. For example, the word 'triptan' occurred 2 times in books in 1782 and 1,390 times in 2008. From 1782 to 2008, the word 'triptan' was used a total of 9,323 times in books scanned by Google. See Reference: Google Ngram project.

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