Upjohn claims Wyeth Prempro promotions infringe Provera trademark in lawsuit.
Executive Summary
UPJOHN CHARGES WYETH WITH TRADEMARK INFRINGEMENT IN PREMPRO PROMOTION in a lawsuit filed April 17 in Kalamazoo, Mich. federal court. Upjohn is seeking an injunction against the marketing of Wyeth-Ayerst's Prempro combination of Premarin conjugated estrogens and Cycrin medroxyprogesterone acetate tablets, claiming that the product infringes Upjohn's trademark for the MPA brand Provera. Upjohn also alleges that Wyeth's promotions of the Premphase phased combination of Premarin and Cycrin violate the Provera trademark.