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Doctor insights on: How Long Does Insulin Stay In The System After Injection

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Dr. Vered Lewy-Weiss
Board Certified, Pediatric Endocrinology
23 years in practice
11M people helped
1

1
How long does insulin stay in the system after injection?

Dr. Vered Lewy-Weiss
Board Certified, Pediatric Endocrinology
23 years in practice
11M people helped
How long does insulin stay in the system after injection?

Type of insulin?: This is entirely dependent on the type and the dose. Therefore you may see effects ranging from several hours to over 24 hours. ...Read more

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Dr. Marsha Davis
Board Certified
23 years in practice
66M people helped
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Dr. Marsha Davis
Board Certified
23 years in practice
66M people helped
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Dr. Quang Nguyen
2,705 doctors shared insights

Insulin (Definition)

Insulin lowers blood sugar by allowing it to leave the bloodstream and enter cells. Everyone needs insulin. People with type 1 diabetes can't make their own insulin. They must take insulin every day. Insulin is usually injected under the skin. In some cases, a pump delivers the insulin continuously. Insulin does not come in pill form. Insulin preparations differ in how fast they start to work and how long they last. The health care professional will review your blood glucose levels to determine the appropriate type of insulin you should use. More than one type of insulin may be mixed together in an injection to achieve the ...Read more


Dr. Georgia Latham
Board Certified, Family Medicine
30 years in practice
1M people helped
2

2
How long does humalog insulin usually stay in your system after an injection?

Dr. Georgia Latham
Board Certified, Family Medicine
30 years in practice
1M people helped
How long does humalog insulin usually stay in your system after an injection?

Short acting insulin: such as Humalog, generally begins lowering your blood sugar with 15 minutes of an injection. Its peak action is between 30 minutes - 1.5 hours. It may still be having an effect on blood sugar for as long as 6 - 8 hours after an injection. ...Read more

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Dr. Marsha Davis
Board Certified
23 years in practice
66M people helped
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Dr. Marsha Davis
Board Certified
23 years in practice
66M people helped
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Dr. Richard Shewbridge
Board Certified, Endocrinology
28 years in practice
301K people helped
3

3
How long can a type 1 diabetic last without insulin injection?

Dr. Richard Shewbridge
Board Certified, Endocrinology
28 years in practice
301K people helped
How long can a type 1 diabetic last without insulin injection?

It depends.: If relatively healthy and you have a ready supply of fluids to drink, you can get along but will be progressively losing weight and be hounded by insatiable thirst and frequent urination night and day. If you get sick, however, and you're too weak to get something to drink, you can deteriorate rapidly and die from lack of Insulin and dehydration from the constant urinary losses. ...Read more

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Dr. Robert Kwok
Board Certified, Pediatrics
28 years in practice
13M people helped
4

4
After taking long term insulin why did my bs drop 50 points in 5 minutes?

Dr. Robert Kwok
Board Certified, Pediatrics
28 years in practice
13M people helped
After taking long term insulin why did my bs drop 50 points in 5 minutes?

Can recheck: If one is using Insulin and notices a sudden change in the blood glucose reading, she can double check the Insulin to make sure the dose is correct, and then retest the blood sugar. Sometimes, a blood sugar result is not correct, due to reasons such as machine error, problems with the test strip, human error, etc... The doctor can evaluate if there are worrisome concerns. ...Read more

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Dr. Marsha Davis
Board Certified
23 years in practice
66M people helped
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Dr. Quang Nguyen
Board Certified, Endocrinology
27M people helped
5

5
How long should you wait to shower after you inject insulin?

Dr. Quang Nguyen
Board Certified, Endocrinology
27M people helped
How long should you wait to shower after you  inject insulin?

Right away: If done correctly, you don't need to wait to shower after injecting insulin. ...Read more

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Dr. Quang Nguyen
Board Certified, Endocrinology
27M people helped
6

6
Am curious to know after medicines become less effective diabetics are put on insulin.How long will the insulin be effective once started.What next !!

Dr. Quang Nguyen
Board Certified, Endocrinology
27M people helped
Am curious to know after medicines become less effective diabetics are put on insulin.How long will the insulin be effective once started.What next !!

Right away: Insulin are effective right away. Unless you're a type 1, insulin should be used together with oral pills. Some complement the action of insulin and should be used together. ...Read more

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Dr. Vered Lewy-Weiss
Board Certified, Pediatric Endocrinology
23 years in practice
11M people helped
7

7
How long do you have to stay in a hospital for insulin overdose?

Dr. Vered Lewy-Weiss
Board Certified, Pediatric Endocrinology
23 years in practice
11M people helped
How long do you have to stay in a hospital for insulin overdose?

Intentional?: Depending on the type of Insulin you're referring to, hypoglycemia from an Insulin overdose may take anywhere from several hours to more than 24 hours to wear off. However, if the overdose was intentional, or, if the patient has had a lot of difficulty with diabetes management, a longer stay may be necessary to sort things out. ...Read more

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Dr. Vered Lewy-Weiss
Board Certified, Pediatric Endocrinology
23 years in practice
11M people helped
8

8
How long after a possible insulin overdose will a diabetic start to show signs of negative effects?

Dr. Vered Lewy-Weiss
Board Certified, Pediatric Endocrinology
23 years in practice
11M people helped

Type of insulin?: Short acting Insulin could start working within 5-10 minutes. Other types of Insulin could take hours before hypoglycemia might be a problem. ...Read more

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Dr. Heidi Fowler
Board Certified, Psychiatry
20 years in practice
532M people helped
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Dr. Krishna Anand
Board Certified, Pediatrics
45 years in practice
698K people helped
10

10
My child is GH deficient and was prescribed daily injections of 0,025mg/kg. Is it ok to inject and eat breakfast right after? Insulin response

Dr. Krishna Anand
Board Certified, Pediatrics
45 years in practice
698K people helped
My child is GH deficient and was prescribed daily injections of 0,025mg/kg. Is it ok to inject and eat breakfast right after? Insulin response

Insulin response o.k: Growth harm one causes body to make Insulin like growth factor and Insulin growth factor binding protein 3. which helps in the growth of child . growth harm one does not interfere with Insulin response,from pancreas . ...Read more

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Dr. Marsha Davis
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