NRx Pharmaceuticals, Inc., a clinical-stage bio-pharmaceutical company, develops novel therapeutics for the treatment of central nervous system disorders, including suicidal depression, post-traumatic stress disorder, and chronic pain. Its products include NRX-101 (D-cycloserine/Lurasidone), an oral, fixed dosed combination of D-cycloserine and lurasidone that earned food and drug administration-designated breakthrough therapy for suicidal treatment-resistant bipolar depression; and NRX-100 (ketamine), which has been awarded FDA fast track designation for the treatment of severe bipolar depression with acute suicidal ideation and behavior. The company has a partnership with Alvogen Inc. and Lotus Pharmaceutical Company; development and manufacturing agreement with Nephron Pharmaceuticals, Inc. and Alcami; license agreement with Apkarian Technologies; development and license agreement with Glytech; license agreement with Sarah Herzog Memorial Hospital. The company was founded in 2015 and is based in Wilmington, Delaware.