☰ Revisor of Missouri


Chapter 338

< > Effective - 28 Aug 1996, 4 histories, see footnote (history) bottom

  338.056.  Generic substitutions may be made, when, form required for prescription blanks, exception — penalty. — 1.  Except as provided in subsection 2 of this section*, the pharmacist filling prescription orders for drug products prescribed by trade or brand name may select another drug product with the same active chemical ingredients of the same strength, quantity and dosage form, and of the same generic drug type, as determined by the United States Adopted Names and accepted by the Federal Food and Drug Administration.  Selection pursuant to this section is within the discretion of the pharmacist, except as provided in subsection 2 of this section*.  The pharmacist who selects the drug product to be dispensed pursuant to this section shall assume the same responsibility for selecting the dispensed drug product as would be incurred in filling a prescription for a drug product prescribed by generic name.  The pharmacist shall not select a drug product pursuant to this section unless the product selected costs the patient less than the prescribed product.

  2.  A pharmacist who receives a prescription for a brand name drug may, unless requested otherwise by the purchaser, select a less expensive generically equivalent product under the following circumstances:

  (1)  If a written prescription is involved, the prescription form used shall have two signature lines at opposite ends at the bottom of the form.  Under the line at the right side shall be clearly printed the words: "Dispense as Written".  Under the line at the left side shall be clearly printed the words "Substitution Permitted".  The prescriber shall communicate the instructions to the pharmacist by signing the appropriate line.  No prescription shall be valid without the signature of the prescriber on one of these lines;

  (2)  If an oral prescription is involved, the practitioner or the practitioner's agent, communicating the instructions to the pharmacist, shall instruct the pharmacist as to whether or not a therapeutically equivalent generic drug may be substituted.  The pharmacist shall note the instructions on the file copy of the prescription.

  3.  All prescriptions written in the state of Missouri by practitioners authorized to write prescriptions shall be on forms which comply with subsection 2 hereof.

  4.  Notwithstanding the provisions of subsection 2 of this section to the contrary, a pharmacist may fill a prescription for a brand name drug by substituting a generically equivalent drug when generic substitution is allowed in accordance with the laws of the state where the prescribing practitioner is located.

  5.  Violations of this section are infractions.


(L. 1978 H.B. 933, A.L. 1996 H.B. 1237)

*Words "of this section" do not appear in original rolls.

---- end of effective  28 Aug 1996 ----

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