If you’ve never had chickenpox (varicella), the CDC recommends that you get the chickenpox vaccine instead of Shingrix. Researchers haven’t studied Shingrix in people who have never had chickenpox. And Shingrix is not approved for preventing chickenpox.
If you can’t recall whether you’ve had chickenpox, you may need to be screened for it. But this will depend on your age.
It’s assumed that people born in the United States and elsewhere before 1980 have been exposed to chickenpox. Therefore, you may be able to receive Shingrix. You should check with your doctor first to make sure.