Oklahoma Code § 59-355.4

Title 59. Professions And Occupations: Substituting interchangeable biological products for
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prescribed biological products.
A.  For the purposes of this section:
1.  "Biological product" has the same meaning given to that term
in 42 U.S.C., Section 262; and
2.  "Interchangeable biological product" means a biological
product that the U.S. Food and Drug Administration (FDA):
a. has licensed, and determined to meet the standards for
interchangeability pursuant to 42 U.S.C., Section
262(k)(4), or
b. has determined is therapeutically equivalent as set
forth in the latest edition of or supplement to the
United States Food and Drug Administration's (FDA)

Approved Drug Products with Therapeutic Equivalence
Evaluations.
B.  A pharmacist may substitute an interchangeable biological
product for a prescribed biological product if:
1.  The substituted product has been determined by FDA to be
interchangeable, as defined in subsection A of this section, with
the prescribed biological product;
2.  The prescribing health care provider does not express a
preference against substitution in writing, verbally or
electronically; and
3.  The pharmacy informs the patient of the substitution.
C.  The dispensing pharmacist or the pharmacist's designee shall
make an entry into an electronic records system of the specific
product provided to the patient including the name of the product
and the manufacturer.  The communication shall be conveyed by making
an entry through:
1.  An interoperable electronic medical records system;
2.  An electronic prescribing technology;
3.  A pharmacy benefit management system; or
4.  A pharmacy record.
D.  Entry into an electronic records system as described in
subsection C of this section is presumed to provide notice to the
prescriber.  If no electronic records system is in use by the
pharmacy, the pharmacist shall communicate the biological product
dispensed to the prescriber using facsimile, telephone, electronic
transmission or other prevailing means, except that communication
shall not be required where:
1.  There is no FDA-approved interchangeable biological product
for the product prescribed; or
2.  A refill prescription is not changed from the product
dispensed on the prior filling of the prescription.
E.  The dispensing pharmacist or a prescriber shall not be:
1.  Required to show proof that the prescriber has access to the
record in any type of payment audit conducted by a payer or pharmacy
benefit manager; or
2.  Subject to disciplinary action or civil penalties for
failure to ensure that the record is accessible or for failure to
access the record.
F.  The State Board of Pharmacy shall maintain a link on its
Internet website to the current list of all biological products
determined by the FDA to be interchangeable with a specific
biological product.
G.  Nothing in this section shall preclude existing approved
brand and generic substitutions.

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