Treating Low Blood Glucose If You Take Medicines That Slow Down Digestion
Some diabetes medicines slow down the digestion of carbohydrates to keep blood glucose levels from rising too high after you eat. If you develop low blood glucose while taking these medicines, you will need to take glucose tablets or glucose gel right away. Eating or drinking other sources of carbohydrates wont raise your blood glucose level quickly enough.
What Is The Outlook For People With Hypoglycemia
Hypoglycemia can be managed when you and your healthcare provider understand what causes your blood sugar to go down. Give your healthcare provider as much information as possible about any hypoglycemic episodes. Fixing the problem may be as simple as changing the times you take medication, eat and exercise. Minor changes to the types of food you eat may also help.
Possible Causes With Diabetes
Diabetes affects your bodys ability to use insulin. Think of insulin as the key that unlocks your cells, letting glucose in for energy.
People with diabetes use a variety of treatments to help their bodies use the glucose in their blood. Among these are oral medications that increase insulin production and insulin injections.
If you take too much of these types of medications, your blood sugar may drop too low. People also sometimes experience low blood sugar when planning to eat a big meal, but then they do not eat enough.
Skipping meals, eating less than normal, or eating later than normal but taking your medication at your normal time can also lead to low blood sugar levels.
Unplanned excess physical activity without eating enough can also cause a drop in blood sugar levels.
Drinking alcohol when youre on these medications can also lead to low blood sugar, especially if it replaces food. When the body is trying to get rid of alcohol it becomes worse at managing blood sugar levels.
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How To Treat A Low Blood Sugar Level Yourself
Follow these steps if your blood sugar level is less than 4mmol/L or you have hypo symptoms:
You do not usually need to get medical help once you’re feeling better if you only have a few hypos.
But tell your diabetes team if you keep having hypos or if you stop having symptoms when your blood sugar level is low.
How To Recognize Hypoglycemia

The first signs of hypoglycemia include feeling sweaty, shaky, and hungry. However, not everyone has these symptoms or notices them in time to prevent low blood sugar from getting worse. Its also important to know that your symptoms of hypoglycemia will change the longer you have T1D.
As hypoglycemia gets worse, symptoms can include:
- Feeling weak
- Having difficulty walking or seeing clearly
- Acting strange or getting disoriented
- Having seizures
Severe hypoglycemia may make you faint or pass out. This is dangerous if you are driving, climbing stairs, or doing other activities where you need to stay aware of things around you.
Hypoglycemia can happen at night. If it does, you are likely to wake up, but its important not to rely on your body to wake you up. A continuous glucose monitor, or CGM, can alert you and those around you with an alarm to let you know if your blood sugar starts getting low while you are sleeping.
Its a good idea to check your blood sugar often when lows are likely, such as in hot weather or when you travel. Your CGM can also let you know when your blood sugar is getting lower.
Watch out for hypoglycemia unawareness.
You might not have early warning signs of low blood sugar. This is called hypoglycemia unawareness, and it raises the risk of having severe lows. It is more likely if:
- You have had diabetes longer than 5 or 10 years
- You have frequent episodes of hypoglycemia
- You take certain medicines, such as beta blockers for high blood pressure
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Severe Low Blood Sugar
As your low blood sugar gets worse, you may experience more serious symptoms, including:
- Feeling weak.
- Having difficulty walking or seeing clearly.
- Acting strange or feeling confused.
- Having seizures.
Severe low blood sugar is below 54 mg/dL. Blood sugar this low may make you faint . Often, youll need someone to help you treat severe low blood sugar.
People with diabetes may experience low blood sugar as often as once or twice a week, even when managing their blood sugar closely. Knowing how to identify and treat it is important for your health. Learn how to treat low blood sugar.
Preventing A Low Blood Sugar Level
If you have diabetes, you can reduce your chance of getting a low blood sugar level if you:
- Check your blood sugar level regularly and be aware of the symptoms of a low blood sugar level so you can treat it quickly.
- Always carry a sugary snack or drink with you, such as glucose tablets, a carton of fruit juice or some sweets. If you have a glucagon injection kit, always keep it with you.
- Do not skip meals.
- Be careful when drinking alcohol. Do not drink large amounts, check your blood sugar level regularly, and eat a carbohydrate snack afterwards.
- Be careful when exercising eating a carbohydrate snack before exercise can help to reduce the risk of a hypo. If you take some types of diabetes medicine, your doctor may recommend you take a lower dose before or after doing intense exercise.
- Have a carbohydrate snack, such as toast, if your blood sugar level drops too low while you’re asleep
If you keep getting a low blood sugar level, talk to your diabetes care team about things you can do to help prevent it.
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How Do I Treat Low Blood Glucose
If you begin to feel one or more symptoms of low blood glucose, check your blood glucose level. If your blood glucose level is below your target or less than 70 mg/dL, follow these steps
What If The 15
If you dont feel better after three tries, or if your symptoms get worse, call your healthcare provider or 911. Healthcare providers can use a medication called glucagon. They inject it with a needle or squirt it up your nose. Glucagon is also available for home use. Your healthcare provider can prescribe it and teach a family member or friend how to use it in the event of severe hypoglycemia.
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A Low Blood Sugar Level Without Diabetes
A low blood sugar level is uncommon in people who do not have diabetes.
Possible causes include:
- a gastric bypass
- other medical conditions, such as problems with your hormone levels, pancreas, liver, kidneys, adrenal glands or heart
- some medicines, including quinine
See a GP if you think you keep getting symptoms of a low blood sugar level. They can arrange some simple tests to check if your blood sugar level is low and try to find out what’s causing it.
What Should I Do If This Happens
People and their partners or roommates should learn to recognize the signs of nighttime hypoglycemia. Be prepared! Ask your doctor for an emergency glucagon kit. This kit contains a fast-acting medication that can be injected if the person cant be woken up. Store the kit in a bedside drawer for easy access.
DO NOT PUT ANYTHING INTO A PERSON’S MOUTH IF THEY ARE ASLEEP OR CANNOT SIT UP.
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If the person cannot be woken: If there is no emergency glucagon kit, call 911. If the person has a glucagon kit, the partner or roommate should follow the instructions to fill the syringe and inject the medicine. Once fully awake, he/she should eat a meal and check their blood glucose every few hours using a home test kit. After giving the injection, the persons doctor should be notified.
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If the person can be woken up and sit without support: They should be given a fast-acting glucose source. Good options include hard candy, fruit juice or glucose paste or tablets, which can be purchased at most pharmacies. Once the person is fully awake, they should eat a meal and check their blood glucose every few hours using a home test kit.
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What Are Clinical Trials For Low Blood Glucose
Clinical trialsand other types of clinical studiesare part of medical research and involve people like you. When you volunteer to take part in a clinical study, you help doctors and researchers learn more about disease and improve health care for people in the future.
Researchers are studying many aspects of low blood glucose levels in diabetes, such as
- how to diagnose and treat low blood glucose among people with diabetes
- medicines that can treat symptoms of low blood glucose in people with hypoglycemia unawareness
- educational approaches to reduce fear of low blood glucose, which can make it harder for you to control your diabetes
Whats The Link Between Diabetes And Hypoglycemia

Hypoglycemia is most common, by far, in people with diabetes. Treatment for the diseaseoften involves taking medication to increase insulin. Hypoglycemia can develop if things like food, exercise and diabetes medications are out of balance.
Common pitfalls for people with diabetes include:
- Being more active than usual.
- Drinking alcohol without eating.
- Eating late or skipping meals.
- Not balancing meals by including fat, protein and fiber.
- Not eating enough carbohydrates.
- Not timing insulin and carb intake correctly .
Also, if someone with diabetes uses the wrong insulin, takes too much or injects it incorrectly, that can cause hypoglycemia.
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Symptoms Of Mild Low Blood Sugar
You may have these symptoms when your blood sugar has dropped below 4.0 millimoles per litre . When you have had diabetes for many years, you may not always develop symptoms of mild low blood sugar.
Some young children with diabetes cannot recognize symptoms of low blood sugar. Others can, but not every time. To be safe, the parents need to do a home blood sugar test whenever they suspect low blood sugar in a child.
Symptoms may include:
- Sweating . Check for sweating on the back of your neck at your hairline.
- Nervousness, shakiness, and weakness.
- Extreme hunger and slight nausea.
- Dizziness and headache.
- A fast heartbeat and feeling anxious.
These symptoms may go away shortly after you eat food that contains sugar.
Treating Mild To Moderate Hypoglycemia
If you start feeling any of the symptoms listed above, check your blood sugar as soon as possible, then follow the chart below to treat low blood sugar. If you have any concerns, or cant test immediately, its best to treat first and check when possible.
If your blood sugar is |
Eat this |
What to do next |
51 to 70 mg/dL |
10 to 15 grams of fast-acting carbs, such as 4 ounces of fruit juice, 6 to 8 hard candies, or 3 to 4 glucose tablets. |
Test your blood sugar again in 15 minutes. Repeat the treatment if necessary. |
Under 50 mg/dL |
Eat 20 to 30 grams of fast-acting carbs, such as 8 ounces of fruit juice, 12 to 16 hard candies, or 6 to 8 glucose tablets. |
Test your blood sugar again in 15 minutes. Repeat the treatment if necessary. |
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What To Do When Your Blood Sugar Levels Drop Too Low
People who use insulin and other diabetes medications are at risk for hypoglycemia. Keep this action plan handy so you’re prepared.
If you take insulin or diabetes medication, you may be at risk of developing hypoglycemia, or low blood sugar. Without quick attention, hypoglycemia can lead to serious complications, so its important to know what to do if it happens to you or someone close to you.
In very severe cases, hypoglycemia can lead to seizures or loss of consciousness, says a clinical assistant professor of medicine, endocrinology, gerontology, and metabolism at Stanford Health Care, and chief of the Stanford Endocrine Clinic.
It’s possible to have hypoglycemia but have no symptoms, according to the National Institute of Diabetes and Digestive and Kidney Diseases . On the other hand, symptoms can also come on rapidly. While symptoms vary from person to person, if you develop mild to moderate low blood sugar you may:
- Feel shaky or jittery
- Have a headache or be lightheaded
- Turn pale
- Be irritable or combative
- Have blurred vision or see double
Some people feel tingling or numbness in their extremities too, says Rodolfo Galindo, MD, an assistant professor of medicine in the division of endocrinology, metabolism, and lipids at the Emory University School of Medicine in Atlanta, and chair of the inpatient diabetes taskforce.
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What Is Hypoglycemia And Low Blood Sugar
Hypoglycemia is the state of having a blood glucose level that is too low to effectively fuel the body’s cells.
Glucose, which comes from carbohydrates found in foods, is a main source of energy for all of the cells of the body and, especially, the brain. While the body is quite good at extracting glucose from the foods we eat, it relies on a hormone called insulin to actually get the glucose inside the cells of specific organs: the liver, fat, and muscle.
We can think of insulin as holding the key to a cell without insulin, the glucose just remains in the blood, where its also known as blood sugar. During an episode of hypoglycemia, theres not enough glucose in the blood. The normal range is approximately 70 to 150 mg/dl .
Hypoglycemia is most common in newborns. In older children, its most often seen as a complication of insulin therapy for diabetes but can sometimes have other causes as well.
In the majority of cases, hypoglycemia is temporary, easily treated, and usually does not have serious consequences. There are several rare disorders in which hypoglycemia is recurrent and potentially life-threatening. However, with timely diagnosis and appropriate treatment, these can be effectively managed.
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What Are Some Tips To Prevent Nighttime Blood Sugar Level Dips
No Symptoms Be Alarmed
Surprisingly, the most dangerous episodes of hypoglycemia occur with little or no warning. When low blood glucose occurs on a regular basis, the body can become used to the warning signs and the person may stop noticing symptoms. This is a particularly dangerous condition known as hypoglycemic unawareness. People with this condition might not realize they have low blood glucose until it’s dangerously low seizures and coma are sometimes the first indication of a problem. The good news is that this condition can often be reversed allowing people to once again notice the signs of low blood glucose if hypoglycemia is avoided for a few weeks through careful monitoring of blood glucose.
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