Contrary to popular belief, kale is not rich in oxalates (see Oxalates in Kale and Spinach). Rhubarb. The green, inedible leaves of the rhubarb plant are particularly rich in oxalates, but also the edible stalks contain significant amounts.
A: Cymbalta (duloxetine) is a medication used to treat depression, nerve pain, anxiety, and fibromyalgia. It works to balance out the chemicals, serotonin and norepinephrine, in the brain that cause symptoms of depression.
Diabetic nerve pain is one of the official things on the list that cymbalta is used to treat, but like PAlady & Chutz said, it has other off the label uses as well. The use of cymbalta to treat non-diabetic nerve pain is becoming more & more common.