IU meaning in Measurement Unit ?

Answer: What is International Units mean?

In pharmacology, the international unit (IU) is a unit of measurement for the amount of a substance; the mass or volume that constitutes one international unit varies based on which substance is being measured, and the variance is based on the biological activity or effect, for the purpose of easier comparison across substances. International units are used to quantify vitamins, hormones, some medications, vaccines, blood products, and similar biologically active substances.

Many biological agents exist in different forms or preparations (e.g. vitamin A in the form of retinol or beta-carotene). The goal of the IU is to be able to compare these, so that different forms or preparations with the same biological effect will contain the same number of IUs. To do so, the WHO Expert Committee on Biological Standardization provides a reference preparation of the agent, arbitrarily sets the number of IUs contained in that preparation, and specifies a biological procedure to compare other preparations of the same agent to the reference preparation. Since the number of IUs contained in a new substance is arbitrarily set, there is no equivalence between IU measurements of different biological agents. For instance, one IU of vitamin E cannot be equated with one IU of vitamin A in any way, including mass or efficacy.

The term international unit is also used to describe any of various physical or monetary units agreed upon internationally, in particular one forming part of the International System of Units (SI). International units as used in pharmacology are not part of the SI. The IU is distinct from the enzyme unit, also known as the international unit of enzyme activity and abbreviated as U.

reference

Full Form	Category
Indiana University	Academic & Science
Istanbul University	Academic & Science
Instructional Unit	Community
Imaging Unit	Computing
Internet Update	Computing
Individual Unit	General
Infinite Universe	General
Intermediate Unit	General
Imperial Units	General
Integrated Unit	General
Item Upgrade	General
Inebriated and Underage	Governmental
Inter-Urban	Governmental
Istanbul ÜNiversitesi	International
Izquierda Unida	International
Individual Unemployable	Jobs
Independence of Underlined	Maths
Intensity Units	Measurement Unit
Information Unit	Measurement Unit
International Units	Measurement Unit
Immunizing unit	Medical
International Unit	Medical
IntraUterine	Medical
Insulated Underwear	Medical
Indianapolis Union Railway	Regional
Indianapolis Union	Regional
Instrument Unit	Space Science
Interface Unit	Space Science
Internal Use	Telecommunication