Subcutaneous injection was authorized July 30, 2021. See bottom of page 4. Note the restrictions...
REGEN-COV is authorized for intravenous infusion. Subcutaneous injection is authorized as an alternative route of administration when intravenous infusion is not feasible and would lead to delay in treatment.
Thanks for that update. Poking around on the regenerin.com website, i found this:
“Store unopened casirivimab and imdevimab vials in a refrigerator at 2°C to 8°C (36°F to 46°F) in the original carton to protect from light.”
So, no difficult storage requirements such as some of the vaccines have.