Neuroactive steroids are also called as neurosteroids . They are endogenous steroids that rapidly alter neuronal excitability through interaction with ligand-gated ion channels and other cell surface receptors. Neuroactive steroid refers to steroids that are synthesized by an endocrine gland that reach the brain through the bloodstream and have effects on brain function. Neurosteroids have a wide range of potential clinical applications from sedation to treatment of epilepsy and traumatic brain injury. Ganaxolone is a synthetic analog of the endogenous neurosteroid. Allopregnanolone is under investigation for the treatment of epilepsy.

(B) (1) Every licensed health professional authorized to prescribe drugs shall keep a record of all controlled substances received and a record of all controlled substances administered, dispensed, or used other than by prescription. Every other person, except a pharmacist or a manufacturer, wholesaler, or other person licensed under section of the Revised Code, who is authorized to purchase and use controlled substances shall keep a record of all controlled substances purchased and used other than by prescription. The records shall be kept in accordance with division (C)(1) of this section.

In the final, the USA had individual 400m bronze medalist DeeDee Trotter lead off. From the gun she put distance on the rest of the field. While the display clock read for her split, it was more like , handing the baton to Allyson Felix several meters ahead. With the miscalculation Felix ran close to a split, reported as , then Francena McCorory () and individual gold medalist Sanya Richards-Ross () continued to extend the lead. It was almost 3 and a half seconds at the finish. Russia was clearly second ahead of Jamaica and Ukraine, those teams remaining in the same positions from the first handoff. [2] [3]