International PharmaceuticalProducts Inc said Eli Lilly and Co has filed a patent
infringement suit against it for marketing Vincristine Sulfate
for injection.
    International Pharmaceutical said it believes that becaue
of differences in formulation, it is not infringing on Eli
Lilly's patent.
    Vincristine Sulfate is a chemotherapeutic product used to
treat cancer.
 Reuter
