A woman who sued Wyeth, claiming her breast cancer was caused by the company’s hormone replacement drug, did not show sufficient evidence that her doctor wouldn’t have prescribed the drug if warnings were better, a Philadelphia judge explained as to why he overturned a $3 million jury award.

Philadelphia Common Pleas Senior Judge Ricardo C. Jackson outlined for the Superior Court Thursday why his grant of JNOV and his denial of a punitive damages phase in Nelson v. Wyeth should be upheld.