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Lowest DBP recovery rule under medically necessary no-substitution claims: 6.2 Medically Necessary "No Substitution" Claims The Side Effect Reporting Form will not have to be renewed. However, the pharmacy must maintain a copy of the prescription that contains a direction that there be no substitution and the required Health Canada Side Effect Reporting Form (completed and signed by the prescriber). The prescriber must write “No Substitution” or “No Sub” on renewal or subsequent new written prescriptions, and indicate “No Substitution” on subsequent new oral prescriptions. The dispenser will be reimbursed the DBP plus a mark-up and the lesser of the posted usual and customary fee or the ODB dispensing fee minus the applicable ODB co-payment amount. Where a completed Side Effect Reporting Form is not available at the pharmacy during an inspection, the difference between the cost of the higher-cost product and the lowest DBP listed for the interchangeable category will be recovered. (ontario.ca, Revision #17; 2026-08-03 ↗) 6.2 Medically Necessary "No Substitution" Claims The Ministry will provide reimbursement of a higher-cost interchangeable product in medically necessary circumstances where a patient has experienced a significant adverse reaction with two (2) lower-cost interchangeable drug products, where available. When a prescriber identifies a patient for which it is medically necessary that a higher cost interchangeable product be provided, the prescriber must: • Complete, sign and forward to the pharmacist a copy of the Health Canada side effect reporting form for each lower-cost interchangeable drug product trialed (Side Effect Reporting Form[s]); and • Write “No Substitution” or “No Sub” on a written prescription or indicate “No Substitution” to the pharmacist in the case of a verbal prescription. The prescriber should keep a copy of the completed form in the patient’s record for future use and reference. In the case of a written prescription, when the pharmacist or dispensing physician receives a prescription with the written notation “No Substitution” or “No Sub”, reimbursement will be provided for the higher-cost interchangeable product only if the prescription is accompanied by a completed Health Canada Side Effect Reporting Form for each of the lower-cost interchangeable drug products trialed. This form must be completely filled out noting the details of the adverse reaction and signed by the prescriber. In the case of a verbal prescription, the prescriber must satisfy the operator of the pharmacy or dispensing physician that a completed Health Canada Side Effect Reporting Form for each of the lower-cost interchangeable drug products trialed has been completed and signed by the prescriber. A written record of this verbal prescription and the completed Health Canada Side Effect Reporting Form must be received by the pharmacy prior to claim submission. Upon receipt, the pharmacist must: • Fax, submit online or mail the completed and signed form to Health Canada’s Canada Vigilance Program; and • Retain his or her copy of the completed and signed Side Effect Reporting Form. (ontario.ca, Revision #17; 2026-08-03 ↗)

Cancidas · DIN 02244265 Manufacturer: Merck Frosst Canada & Cie, Merck Frosst Canada & Co.; listing date 2017-08-30 Health Canada: Cancelled post market since 2026-04-14 · brand CANCIDAS · ATC J02AX04 CASPOFUNGIN · form Powder for solution · route Intravenous · ingredients CASPOFUNGIN (CASPOFUNGIN ACETATE) 50 MG/VIAL · company Merck canada inc · schedule Prescription

The source extract's flag for this DIN is unclear — confirm on the e-Formulary before prescribing (DIN 02244265). DIN 02244265: Cancidas Raw flags: sec3=Y, sec3b=Y, sec3bEAP=Y Item: 081204027; group id 7; item number 0009; lccId None; manufacturer id FRS Source form: Inj-Vial Pk; strength: 50mg/Vial Recorded listing: Off-Formulary Interchangeable, not an ODB benefit; may be reimbursed through the Exceptional Access Program when approved (likely, unconfirmed) Source prices (unrounded): not recorded; ministry not recorded Source: ODB odb-formulary-ed43-extract-2026-08-26.xml extract_date=2026-08-26 DIN=02244265 Health Canada DPD extract of Sep 2, 2026 (Open Government Licence – Canada) · https://health-products.canada.ca/dpd-bdpp/info?lang=eng&code=68232

Interchangeable products

Caspofungin for Injection · DIN 02460947 · $222.0000 Caspofungin for Injection · DIN 02486989 · $222.5000

Shortage status: not checked (no credentials)

Health Canada lists this DIN as Cancelled post market since 2026-04-14 — choose a marketed DIN from the same-category list.