international units
Worldwide standard quantities
International units are standardized measurements for vitamins, hormones, and other biologically active substances.
Because potency varies by preparation method, IUs measure biological effect rather than mass: The label says 1000 IU of vitamin D.
Different substances have different IU-to-milligram conversions, so IUs can't be compared across compounds.
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- dosageMeasured medicine amount
- potencyDegree of strength
- vitamin DCalcium absorption enabler
- vitamin EFat-soluble antioxidant nutrient
insulin · heparin · vaccines · interferon · antibodies · enzymes · hormones · bioavailability
Universal measurement framework
- metric systemDecimal-based measurement standard
- kilogramBase unit of mass
- meterDevice that measures usage
- secondUnit smaller than minute
ampere · candela · mole · conversion · calibration · measurement · uniformity · interoperability
IU
Indiana's flagship university
vitamin E · insulin · heparin · vaccines · interferon · antibodies · enzymes · hormones · bioavailability · pharmacology
SI
Universal measurement framework
- metric systemDecimal-based measurement standard
- kilogramBase unit of mass
- meterDevice that measures usage
second · ampere · candela · mole · conversion · calibration · measurement · uniformity · interoperability · comparability
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