Copycats trip as patent holders hawk variants, tweak dosage

Generic drug players like Natco Pharma and Lupin are finding it tough to launch new products, as innovator companies offer different versions of existing drugs before patent expiry, in effect prolonging the patent period and stymieing plans to launch copy

http://www.financialexpress.com/archive/copycats-trip-as-patent-holders-hawk-variants-tweak-dosage/1240887/

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