97 - Is there a current practice to use a symbol "PR" to designate a prescription drug, like in trade-marks where the symbols "TM" or (R) are used ? And if so, what are the rules of use for such symbol?
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As per PAAB Code 2.2, the federal drug schedule (e.g. Pr for prescription products) in addition to the brand and generic names of the product must appear in juxtaposition as least once in both the advertising copy and prescribing information.
