The pain reduced dramatically after a diagnostic lidocaine infusion and the reduction in pain lasted for 3 days. Following this the patient responded well to lidoderm 5% patches and achieved 80% ...

Lidoderm is a patch containing the painkiller lidocaine. It's for treatment of post-shingles nerve pain. Kedra says a generic Lidoderm will take away $360 million of Endo's annual revenue.