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Tag: Pharmacology units

Explore our medication guides and pharmacology articles within this category.

Which one is bigger, IU or mg? Understanding Potency vs. Mass

3 min read
In pharmacology, International Units (IU) are used for fat-soluble vitamins like A, D, and E, as well as for hormones, vaccines, and some medications [1.5.1, 1.5.3]. So, which one is bigger, IU or mg? The answer is that they measure entirely different things and cannot be directly compared.