MMD's Seldane
Executive Summary
Suit filed in Miami federal court charges Ivax subsidiary Baker Norton with infringing MMD patent for carboxylic acid metabolite for the antihistamine terfenadine (Seldane). Baker Norton filed an ANDA for terfenadine on May 12. MMD previously had filed suit against Geneva over its ANDA for terfenadine. The basic Seldane patent expired April 15; the metabolite is patented until March 3, 1998