Pennsylvania Prescription Pads

In addition to federal requirements, Pennsylvania requires that:

• Prescription orders may be written on prescription blanks or may be oral, if allowed by law.
• If prescriptions are issued in writing, the bottom of every prescription blank shall be imprinted with the words ‘‘substitution permissible’’ and shall contain one signature line for the physician’s or other authorized prescriber’s signature. The prescriber’s signature shall validate the prescription, and unless the prescriber handwrites ‘‘brand necessary’’ or ‘‘brand medically necessary’’ shall designate approval of substitution of a drug by a pharmacist, pursuant to the act. Imprinted conspicuously on the prescription blanks shall be the words: IN ORDER FOR A BRAND NAME PRODUCT TO BE DISPENSED, THE PRESCRIBER MUST HANDWRITE ‘‘BRAND NECESSARY’’ OR ‘‘BRAND MEDICALLY NECESSARY’’ IN THE SPACE BELOW.’’ Information printed on the prescription blank shall be in 8 point, upper-case print. IN ORDER FOR A BRAND NAME PRODUCT TO BE DISPENSED, THE PRESCRIBER MUST HANDWRITE ‘‘BRAND NECESSARY’’ OR ‘‘BRAND MEDICALLY NECESSARY’’ IN THE SPACE BELOW. 
• If prescription orders are given orally, substitution is permissible unless the prescriber expressly indicates to the pharmacist that the brand name drug is necessary and that substitution is not allowed.
• Prescriptions for controlled substances shall be written in indelible ink, indelible pencil or typewriter and shall include the following information:
  • The date of issue.
  • The name and address of the patient, or if the patient is an animal, the name and address of the owner and the species of the animal.
  • Directions for administration.
  • The name, address and Federal Drug Enforcement Administration registration number of the prescribing practitioner.
  • The signature of the prescribing practitioner in the manner described above.
• The Federal Drug Enforcement Administration registration number cannot be preprinted on the prescription form.

Read documentation here.

For the federal requirements, you can refer to the official documentation here and here.