It hasn't really been shown to be beneficial in the research that I've seen so far. The research was mainly based on the trials out of the U.K., where because of the NHS they were able to do really cool studies where you just had hundreds of thousands of patients enrolled in different trials. That's the best evidence that we have to know that dexamethasone and tocilizumab are what really work for people.
On May 25th, 2021. See this statement in context.