SK Chemical launches lidocaine patch

SK Chemical said on May 31 it has launched Lidotop patch, which is a topical analgesic patch approved by the U.S. Food and Drug Administration (FDA) in 1999 to treat the pain associated with post-herpetic neuralgia (PHN), a chronic condition resulting from nerve damage caused by shingles.

Post-herpetic neuralgia is defined as pain lasting for three months or more after onset of herpes zoster...