Wikipedia
Dasolampanel
Dasolampanel ( INN, USAN, code name NGX-426) is an orally bioavailable analog of tezampanel and thereby competitive antagonist of the AMPA and kainate receptors which was under development by Raptor Pharmaceuticals/ Torrey Pines Therapeutics for the treatment of chronic pain conditions including neuropathic pain and migraine. It was developed as a follow-on compound to tezampanel, as tezampanel is not bioavailable orally and must be administered by intravenous injection, but ultimately neither drug was ever marketed.