The most popular theory is that valproic acid exerts its effects by increasing the concentration of gamma-aminobutyric acid (GABA) in the brain. GABA is a neurotransmitter, a chemical that nerves use to communicate with one another. The FDA approved valproic acid in February, 1978 and divalproex in March 1983. PRESCRIBED FOR: Valproic acid is used for the treatment of seizures, bipolar disorder, and prevention of migraines. Medically Reviewed by a Doctor on 9/15/2015. Report Problems to the Food and Drug Administration. You are encouraged to report negative side effects of prescription drugs to the FDA.
1 Therapeutic nerve blocks are used to treat painful conditions. 2  Such nerve blocks contain local anesthetic that can be used to control acute pain. 3  Diagnostic nerve blocks are used to determine sources of pain. 4  These blocks typically contain an anesthetic with a known duration of relief.
A nerve block is the injection of numbing medication (local anesthetic) near specific nerves to decrease your pain in a certain part of your body during and after surgery.or specific types of surgery, your anesthesiologist may place a ânerve catheter,â which may be used to continuously bathe the nerves in numbing medication for 2-3 days after the surgery. A nerve block is not for everyone and your anesthesiologist will evaluate whether it is the right option for you. Back to Questions.