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For how long is rapid-acting insulin active in the body?

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Rapid-acting insulin can help lower blood glucose for up to 5 hours, though the duration may vary by individual. If you’re planning to take another dose within 5 hours of the last one, consider reducing the dose slightly to reduce the risk of hypoglycemia (low blood glucose).

Disclaimer of Medical Advice: Statements and opinions expressed on this Web site are those of the authors and not necessarily those of the publishers or advertisers. The information, which comes from qualified medical writers, does not constitute medical advice or recommendation of any kind, and you should not rely on any information contained in such posts or comments to replace consultations with your qualified health care professionals to meet your individual needs.

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