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Each state has rules concerning generic substitutions. The chart presented here indicates which states allow for generic substitution by pharmacists. However generic substitution is not permitted when "Brand Only" or similar wording is indicated by the prescriber. The chart also notes which states mandate generic substitution under those circumstances. It indicates which states allow dispensing of a brand name medication if that is requested by a patient.

Also listed are states which mandate dispensing the brand name medication if that is what is indicated by the prescriber. Each state's specific wording requirements for prescriptions are given in the far right column. For the two states where a specific exception is made for anticonvulsant medications (Hawaii) or narrow therapeutic range medications (North Carolina), which includes antiepileptic drugs, that indication is given in bold type. Any questions should be referred to your pharmacist.


The information presented in this chart is for reference only. Prescribers, please consult the appropriate authorities in your state for specific requirements and wording to be sure that medications are dispensed as you have determined appropriate for your patient. Any questions should be directed to those authorities.

State Laws or Statutes Governing Generic
Substitution by Pharmacists
State Allows for Generic Substitution by Pharmacists if "Brand Only" Not Indicated by Physician Mandates Generic Substitution by Pharmacists if "Brand Only" Not Indicated by Physician Allows for Brand if Requested by Patient Mandates Brand Only if Indicated by Physician To Ensure Brand Name Only, Physician Must Indicate the Following on the Written Prescription OR Communicate Orally
Alabama
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
Alaska
 
In the physician's handwriting, the words "Brand Medically Necessary" must appear on the prescription.
Arizona
 
Clearly display on the prescription "DAW" or other wording indicative of Substitution not Permitted.
Arkansas
 
In the physician's handwriting, indicate that the product ordered should not be substituted.
California
 
In the physician's handwriting, the words "Do not substitute" must appear on the prescription.
Colorado
 
In the physician's handwriting, the words "Dispense as Written" must appear on the prescription.
Connecticut
 
In the physician's handwriting, indicate that the product ordered should not be substituted.
Delaware
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
Florida  
In the physician's handwriting, the words "Medically Necessary" must appear on the prescription.
Georgia
 
In the physician's handwriting, the words "Brand Necessary" must appear on the prescription.
Hawaii  
In the physician's handwriting, the words "Brand Medically Necessary" must appear on the prescription. Mandates Brand Only for Anticonvulsant Medications.
Idaho
 
Physician must indicate "Brand Only" by checking the "Brand Only" box on the prescription.
Illinois
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
Indiana
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
Iowa
 
Physician shall communicate to Pharmacist that product should not be substituted.
Kansas
 
In the physician's handwriting, the words "Dispense as Written" must appear on the prescription.
Kentucky  
In the physician's handwriting, the words "Do not substitute" must appear on the prescription.
Louisiana
 
Physician must indicate "Brand Only" by checking the "Dispense as Written or DAW" box on the prescription.
Maine  
 
In the physician's handwriting, the words "Dispense as Written", "DAW", "Brand", or "Brand Neccessary" must appear on the prescription.
Maryland
 
Physician shall communicate to Pharmacist that product should not be substituted.
Massachusetts  
 
In the physician's handwriting, the words "No substitution" must appear on the prescription.
Michigan
 
In the physician's handwriting, the words "Dispense as Written" or "DAW" must appear on the prescription.
Minnesota  
In the physician's handwriting, the words "Dispense as Written" or "DAW" must appear on the prescription.
Mississippi
 
Physician shall communicate to Pharmacist that product should not be substituted.
Missouri
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
Montana
 
In the physician's handwriting, the words "Brand Medically Necessary" must appear on the prescription.
Nebraska
 
In the physician's handwriting, the words "Dispense as Written", "DAW" or similar statements must appear on the prescription.
Nevada  
In the physician's handwriting, the words "Dispense as Written" must appear on the prescription.
New Hampshire
 
Physician must specify that the Brand is Medically Necessary.
New Jersey  
Physician must initial next to the option "Do not Substitute" on the prescription.
New Mexico
 
In the physician's handwriting, the words "No substitution" or "No sub" must appear on the prescription.
New York  
 
In the physician's handwriting, "DAW" must appear on the prescription.
North Carolina
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written". Narrow Therapeutic Range Drugs must be dispensed as originally prescribed.
North Dakota
 
In the physician's handwriting, the words "Brand Necessary" must appear on the prescription.
Ohio
 
In the physician's handwriting, the words "Dispense as Written" or "DAW" must appear on the prescription.
Oklahoma
 
Physician shall communicate to Pharmacist that product should not be substituted.
Oregon
 
In the physician's handwriting, the words "No substitution" or "N.S" must appear on the prescription.
Pennsylvania
 
Physician shall communicate to Pharmacist that product should not be substituted.
Rhode Island  
In the physician's handwriting, the words "Dispense as Brand Name Necessary" must appear on the prescription.
South Carolina
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
South Dakota
 
In the physician's handwriting, the words "Brand Necessary" must appear on the prescription.
Tennessee  
In the physician's handwriting, the words "Dispense as Written", "DAW", or other language of intent must appear on the prescription.
Texas
 
In the physician's handwriting, the words "Brand Necessary" or "Brand Medically Necessary" must appear on the prescription.
Utah
 
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written" OR in the physician's handwriting, the words "Dispense as Written" must appear on the prescription.
Vermont  
In the physician's handwriting, the words "Brand Necessary" or "No substitution" must appear on the prescription.
Virginia
 
In the physician's handwriting, the words "Brand Necessary" must appear on the prescription.
Washington  
Sign the prescription signature line labeled "May not Substitute" or "Dispense as Written".
West Virginia  
In the physician's handwriting, the words "Brand Medically Necessary" must appear on the prescription.
Wisconsin
 
In the physician's handwriting, the words "No substitutions" or "N.S" must appear on the prescription.
Wyoming
 
In the physician's handwriting, the words "Brand Medically Necessary" must appear on the prescription.



Submitted on: 04/25/07
Reviewed by: Steven C. Schachter, MD

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