Is xarelto a controlled substance?

No. In the United States, Xarelto (rivaroxaban) is not a controlled substance. It is a prescription anticoagulant (a direct oral anticoagulant, DOAC) and requires a doctor’s prescription and medical supervision due to bleeding risks.

Note: regulations about “controlled substances” vary by country. In many places DOACs are prescription-only but not scheduled drugs, though local rules can differ. If you’re asking about a specific country, I can check that location’s rules.