I apologize profusely if this is wrong forum for this question; it is a first time posing a question.

I work with a number of pharmaceutical sites that under FDA regulation must include an "Important Safety Information" (ISI) content block on each page of the site. In many cases this duplicate content is not only provided on a specific ISI page it is quite often longer than what would be considered the primary content of the page. At first blush a rel=canonical tag might appear to be a solution to signal search engines and avoid being penalized but the pages also contain original content that should be indexed and has user benefit. Does anyone have a recommendation that would address this duplicate content challenge, perhaps a canonical tag work around or no-index of a specific block of text?

Any advice would be greatly appreciated.