Treat chronic back, neck, and joint pain with FDA and AMA approved Sarapin. Sarapin is derived from a naturally occurring organism called the Pitcher plant. How does it work? Sarapin stops the pain signals in the nerves where they exit the spinal column. Blocking these signals provides relief! It does not affect any other nerve functions, including motor function, and is not affected by cold or heat. Since it is naturally derived, there are no known side effects.