Teva Copied Zithromax Update: Pfizer Lawsuit
When zithromax came off patent protection in November 2005, Teva wasted no time launching its own version of azithromycin, the active ingredient in the drug. But Pfizer claims Teva’s generic is actually azithromycin sesquihydrate, a crystalline version of the chemical that Pfizer patented in December.
Pfizer filed the complaint...
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