TOPIC 1: Drug Nomenclature

• Drug Nomenclature- implies the several names used to identify a drug
• Three different names of a drug

  • Chemical Name
  • Non-proprietary Name
  • Proprietary Name
• Chemical name- The systematic name that describes the chemical structure of the drug using standard chemical nomenclature.
• Chemical name- is when anew chemical entity (NCE) is developed, that is given to a drug in accordance to the rules of chemical nomenclature.
• Chemical name- is established by the International Union of Pure and Applied Chemistry, an agency that has the authority to create medications.
• Chemical name- is useful to chemists and technical personnel, because it provides a precise arrangement of atom groups in a molecule.

  Indication: Not used in drug clinical or marketing situation
• Non-proprietary name- is also called as the "Generic Name" which is a short name given to a drug that is not subjected to proprietary rights (ownership).

  Indications:

  • should always be concise and meaningful
  • used in discussions and textbooks
• Two classes of Non-proprietary Name (NPN)

  • Approved Name
  • Official Name
• Approved Name- is a name given to a drug body like the USAN and BAN

  USAN- United States Adopted Name Council

  BAN- British Approved Name
• Generic name- is used to designate a chemical or pharmacological class of drugs.
• Official name- is the name approved by the National Pharmacopeia Commission and included in the official book. It must be identical with the approved name.
• Proprietary name- are written in capital letter distinguished with a subscript "R" that is encircled.
• Proprietary name- is a name given to a drug by the pharmaceutical firms that sells the drug. A single drug may be sold under many proprietary names.
• PARACETAMOL

  Chemical Name: N - (4 - hydroxyphenyl) acetamide

  NPN: USAN- Acetaminophen

  BAN- Paracetamol

  PN: Panadol, Calpol, Adol
• CHEMICAL NAME: L-thyroxine (T4) Thyroid

  NPN: Levothyroxine Sodium

  PN: Eltroxine, Synthroid
• CHEMICAL NAME: 2 - (Acetyloxy) Benzoic Acid

  NPN: Acetylsalicylic Acid

  PN: Aspirin