NRx Pharmaceuticals Announces Expansion of ZYESAMIR OK FOR COVID Posted on February 1, 2022February 1, 2022 Share This https://www.globenewswire.com/news-release/2022/01/18/2368234/0/en/NRx-Pharmaceuticals-Announces-Expansion-of-ZYESAMI-aviptadil-US-Expanded-Access-and-Right-to-Try-Programs-for-Patients-with-COVID-19-Respiratory-Failure-who-have-Exhausted-All-Appr.html NRx is also making ZYESAMI available as an investigational medicine under the Federal Right to Try Act1