Do I need a new prescriber when I change provinces, or can the old one keep writing?

Changing provinces usually means you need a new prescriber licensed where you now live; the old one generally cannot keep writing indefinitely. Physicians typically must be licensed in the jurisdiction where the patient is located. An Ontario clinician writing for someone who now lives and fills in another province is often not a straightforward long-term arrangement. References: https://www2.gov.bc.ca/gov/content/health/health-drug-coverage/msp https://www2.gov.bc.ca/gov/content/health/practitioner-professional-resources/pharmacare/prescribers/special-authority