Dosage for solid medicines
Learn more about how to calculate the required dosage of tablets to give to a patient, using the ‘PEACE’ problem-solving method. This resource looks at the different ways you might use mental arithmetic to work out and check your answer.
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Available to RCN members
Who is this resource for?
This resource is aimed at nurses and nursing support workers across all settings and levels of practice, including students of health, social work and care professions.What will this resource give me?
- the steps you need to take when starting to calculate your answer
- what questions you need to ask yourself before you approach your calculation
- the different ways you might use mental arithmetic to calculate dosage
- mental arithmetic examples to test your knowledge
- how to use a formula approach (‘The Golden Formula’) to calculate dosage
- the importance of checking your answer and the best ways to do this.
Resource last reviewed
30 Mar 2025
Resource lead
Who is this resource for?
This resource is aimed at nurses and nursing support workers across all settings and levels of practice, including students of health, social work and care professions.
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;Downloaded content date
PDF created on: 16 Sept 2025.
Downloaded from: https://uatlearncyan.rcn.org.uk/Search/Dosage-for-solid-medicines.
Please check: https://rcnlearn.rcn.org.uk for a more up-to-date version of this content.