Hypoglycemia
Hypoglycemia is one of the most common adverse events associated with taking insulin.
The most common causes of hypoglycemia include:
- Taking too much insulin
- Delaying or skipping meals
- More exercise than usual
- An infection or illness
Mild Hypoglycemia
| Typical warning signs | Treatment |
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Eat approximately 15 grams of carbohydrate, such as:
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After eating or drinking something, patients should:
- Wait 15 minutes and test their blood sugar; record the event and number in their log book
- Repeat the above treatment if they do not feel better in 15 minutes
- Call your office if their blood sugar is still low
- Follow the sugar with something that provides carbohydrate and protein if their next meal is more than an hour away (like a half sandwich or crackers and cheese)
- Eat their normal meal at the regular time, even if they previously used a hypoglycemia treatment
- Learn their body's warning signs of falling blood sugar
- When they notice symptoms, they should check their blood sugar immediately
- Always wear or carry diabetes identification
- Educate family members, friends, or coworkers on symptoms and treatment for low blood sugar
When you start a patient on insulin, there are tips you can give him or her to help them lower their risk of hypoglycemia. These tips include:
- Eat meals on time
- Don't skip snacks and meals
- Learn to adjust food and insulin for exercise
- Check blood glucose on time
- Do extra tests when the patient doesn't feel normal
If your patients do not take action quickly, blood glucose can drop dangerously low. This may result in the following:
- Confusion
- Stupor
- Seizures
- Unconsciousness
For important safety information and other prescribing considerations, please see Lilly Glucagon Information for the Physician.
Important Safety Information
Humalog insulins are contraindicated during episodes of hypoglycemia and in patients sensitive to Humalog or one of its excipients. The safety and effectiveness of Humalog in patients less than 3 years of age have not been established. Safety and effectiveness of Humalog Mix75/25 and Humalog Mix50/50 in patients less than 18 years of age have not been established. There are no adequate and well-controlled clinical studies of the use of Humalog in pregnant or nursing mothers.
Potential side effects associated with the use of all insulins include hypoglycemia, weight gain, hypokalemia, lipodystrophy, and hypersensitivity. Because of the difference in action of Humalog, care should be taken in patients in whom these conditions may be clinically relevant (e.g., those who are fasting, have autonomic neuropathy or renal impairment, are using potassium-lowering drugs, or taking drugs sensitive to serum potassium level). Patients should be advised not to mix Humalog Mix75/25 or Humalog Mix50/50 with another insulin. Starting or changing insulin therapy should be done cautiously and only under medical supervision.
When used in an external insulin pump, Humalog should not be diluted or mixed with any other insulin. Humalog Mix75/25 and Humalog Mix50/50 are not indicated for use in external insulin pumps.
Humalog differs from regular human insulin by its rapid onset of action, as well as a shorter duration of activity. Therefore, Humalog and Humalog Mixtures should be given within 15 minutes before a meal. Humalog can also be given immediately after a meal. The short duration of action of Humalog means that patients such as those with type 1 diabetes, whose basal insulin levels are inadequate, will also require a longer-acting insulin to give optimal glucose control (except when using an insulin pump).
Clinical studies comparing Humalog Mix75/25 with human insulin mixtures did not show a difference in the overall rate of hypoglycemia between the two treatments. The overall rate of hypoglycemia did not differ between type 1 and type 2 patients treated with Humalog, as compared with regular human insulin. The lower rate of hypoglycemia with Humalog may be related to higher nocturnal blood glucose levels, as reflected by a small increase in the mean fasting blood glucose levels.
The clinical significance of improvement in postmeal hyperglycemia has not been established. In 12-month clinical studies, A1C did not differ between patients treated with regular human insulin and those treated with Humalog.
Humalog, Humalog Mix75/25, and Humalog Mix50/50 are available by prescription only.
For other important safety information and prescribing considerations, please see Humalog, Humalog Mix75/25, and Humalog Mix50/50 Prescribing Information.
Humalog is a registered trademark of Eli Lilly and Company. Humalog Mix75/25 and Humalog Mix50/50 are trademarks of Eli Lilly and Company.
Humalog insulins are contraindicated during episodes of hypoglycemia and in patients sensitive to Humalog or one of its excipients. The safety and effectiveness of Humalog in patients less than 3 years of age have not been established. Safety and effectiveness of Humalog Mix75/25 and Humalog Mix50/50 in patients less than 18 years of age have not been established. There are no adequate and well-controlled clinical studies of the use of Humalog in pregnant or nursing mothers.
Potential side effects associated with the use of all insulins include hypoglycemia, weight gain, hypokalemia, lipodystrophy, and hypersensitivity. Because of the difference in action of Humalog, care should be taken in patients in whom these conditions may be clinically relevant (e.g., those who are fasting, have autonomic neuropathy or renal impairment, are using potassium-lowering drugs, or taking drugs sensitive to serum potassium level). Patients should be advised not to mix Humalog Mix75/25 or Humalog Mix50/50 with another insulin. Starting or changing insulin therapy should be done cautiously and only under medical supervision.
When used in an external insulin pump, Humalog should not be diluted or mixed with any other insulin. Humalog Mix75/25 and Humalog Mix50/50 are not indicated for use in external insulin pumps.
Humalog differs from regular human insulin by its rapid onset of action, as well as a shorter duration of activity. Therefore, Humalog and Humalog Mixtures should be given within 15 minutes before a meal. Humalog can also be given immediately after a meal. The short duration of action of Humalog means that patients such as those with type 1 diabetes, whose basal insulin levels are inadequate, will also require a longer-acting insulin to give optimal glucose control (except when using an insulin pump).
Clinical studies comparing Humalog Mix75/25 with human insulin mixtures did not show a difference in the overall rate of hypoglycemia between the two treatments. The overall rate of hypoglycemia did not differ between type 1 and type 2 patients treated with Humalog, as compared with regular human insulin. The lower rate of hypoglycemia with Humalog may be related to higher nocturnal blood glucose levels, as reflected by a small increase in the mean fasting blood glucose levels.
The clinical significance of improvement in postmeal hyperglycemia has not been established. In 12-month clinical studies, A1C did not differ between patients treated with regular human insulin and those treated with Humalog.
Humalog, Humalog Mix75/25, and Humalog Mix50/50 are available by prescription only.
For other important safety information and prescribing considerations, please see Humalog, Humalog Mix75/25, and Humalog Mix50/50 Prescribing Information.
Humalog is a registered trademark of Eli Lilly and Company. Humalog Mix75/25 and Humalog Mix50/50 are trademarks of Eli Lilly and Company.




















