An International Nonproprietary Name (INN; also known as rINN, for recommended International Nonproprietary Name or pINN for proposed International Nonproprietary Name) is the official non-proprietary or generic name given to a pharmaceutical substance, as designated by the World Health Organization (WHO). The plethora of named proprietary preparations containing a given substance can lead to confusion about the identity of the active ingredient. INNs facilitate communication by providing a standard name for each substance. A similar role is played in chemistry by IUPAC names; however, these are less suited to common usage, being typically very long and unwieldy. Chemistry (from Egyptian kēme (chem meaning "earth") is the Science concerned with the composition structure and properties IUPAC Nomenclature is a system of naming Chemical compounds and of describing the science of Chemistry in general WHO issues INN names in English, Latin, French, Russian, and Spanish; Arabic and Chinese versions, although not included in the original scheme, are now also being issued.

Example

INN:	Paracetamol
British Approved Name (BAN):	Paracetamol
United States Adopted Name (USAN):	Acetaminophen
Other generic names:	N-acetyl-p-aminophenol, APAP, p-Acetamidophenol, Acetamol, . Paracetamol ( INN) (ˌpærəˈsiːtəmɒl -ˈsɛtə- or acetaminophen ( USAN) is a widely-used Analgesic and Antipyretic Medication A British Approved Name ( BAN) is the official non-proprietary or generic name given to a Pharmaceutical Substance, as defined in the British Pharmacopoeia Paracetamol ( INN) (ˌpærəˈsiːtəmɒl -ˈsɛtə- or acetaminophen ( USAN) is a widely-used Analgesic and Antipyretic Medication United States Adopted Names are unique nonproprietary names assigned to Pharmaceuticals marketed in the United States. Paracetamol ( INN) (ˌpærəˈsiːtəmɒl -ˈsɛtə- or acetaminophen ( USAN) is a widely-used Analgesic and Antipyretic Medication . .
Proprietary names:	Tylenol, Panadol, Panamax, Perdolan, Calpol, Doliprane, Tachipirina, ben-u-ron,Atasol, and others
IUPAC name:	N-(4-hydroxyphenyl)-acetamide

See also

• World Health Organization
• IUPAC nomenclature

External links

• INN information from the WHO
• INN stems and modifiers from the WHO (PDF)

Tylenol is a North American Brand of Drugs for relieving pain, reducing Fever, and relieving the symptoms of allergies, cold IUPAC Nomenclature is a system of naming Chemical compounds and of describing the science of Chemistry in general In Organic chemistry, the phenyl group or phenyl ring (often abbreviated as -Ph) is the Functional group with the formula - Acetamide (or acetic acid amide or ethanamide) CH3CONH2 the Amide of Acetic acid, is a white crystalline solid in IUPAC Nomenclature is a system of naming Chemical compounds and of describing the science of Chemistry in general

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