This is the other article I saw cited. https://www.cureus.com/articles/29004-acetazolamide-nifedipine-and-phosphodiesterase-inhibitors-rationale-for-their-util

This is the other article I saw cited. https://www.cureus.com/articles/29004-acetazolamide-nifedipine-and-phosphodiesterase-inhibitors-rationale-for-their-utilization-as-adjunctive-countermeasures-in-the-treatment-of-coronavirus-disease-2019-covid-19?fbclid=IwAR2QEEkdUBUzd8Yt9VYF03pfoEcyGrTpd8WI1EA3b0amUr-6BXBQPfC_o8Y https://www.cureus.com/articles/29004-acetazolamide-nifedipi...