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How do medicines work?
Replacing substances that are deficient or missing in the body.
The body needs certain levels of proteins (or …), vitamins and minerals in order to work normally. If these important substances are insufficient or lacking, this can lead to medical disorders. These are called ‘deficiency disorders’. Examples include: iron deficiency (…), and vitamin C deficiency (…).
Deficiency disorders can also occur as a result of lack of hormones in the body (...). Common examples include: diabetes (…) and hypothyroidism (…). Deficiency disorders can be treated with medicines or hormones that replace or restore the levels of the missing substances, for example insulin injections for diabetics.
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