i'm looking for the date / year when the drug Norco 10/325 was first introduced to the public via doctor/pharmacy,also the date/year this drug was introduced as a generic.
According to the FDA website, Norco 10/325 (hydrocodone bitartrate and acetaminophen) was approved 02/14/1997.
For the date the product was actually made available to the public, you could try contacting Watson Labs.
Their website has contact details - watsonpharm.com
Question about Norco: 
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