HomeAnswersEndocrinologydiabetesDoes Dexamethasone increase the blood sugar levels in diabetic patients?

Is Dexamethasone I took for COVID-19 the cause for my elevated blood sugar levels?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

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Published At May 6, 2021
Reviewed AtJanuary 30, 2024

Patient's Query

Hi doctor,

I am diabetic, and I can manage my HbA1c level at 6.5 percent with diet and without any medications. Now I have COVID-19, and it is my tenth day. I am taking a course of Dexamethasone 4 mg twice daily per day. My sugar level always ranges between 250 mg/dL to 300 mg/dL. I took Amaryl 2 mg in the morning and 2 mg in the evening today, but my sugar level does not go down? Can this affect my COVID-19 recovery as it is the eleventh day of infection, and I still have a 99.2-degree fever and mild cough which does not go away? I am trying to eat less, which has led to a decrease in my weight by 13 to 15 lbs. After discontinuing Dexamethasone, will my sugar level improve? Also, I have weakness and erectile dysfunction. What should I do?

Answered by Dr. Zulfiqar Ahmed

Hi,

Welcome to icliniq.com.

Thanks for your query.

Dexamethasone is a steroid, and it increases sugar levels. COVID-19 (coronavirus disease 2019) and stress also can increase your sugar levels. If you are feeling fine and good, then you have two options for high sugar levels. You can increase tablet Amaryl (Glimepiride) to 3 mg in the morning and 2 mg in the evening, and if it is still high, you can add tablet Sitagliptin 50 mg. Otherwise, you need to take Insulin for about two weeks. During corona treatment, your target sugar levels should be 100 mg/dL to 150 mg/dL while fasting and not more than 200 mg/dL after food. Once you stop Dexamethasone, your sugar levels will come down in a week or so, and accordingly, you need to decrease your medication. You need to check your sugar more frequently. As far as diet is concerned, do not take simple sugar. Take compound sugar with dietary fibers. Diet cannot control sugar when someone is taking Dexamethasone. Compound sugar includes bread, rice, etc. Simple sugar are sugar itself, glucose, and fruit juices.

Thanks a lot.

Patient's Query

Thanks for the reply, doctor,

Can a high sugar level delay my COVID-19 recovery process? Can it harm my immunity? I am trying to take less diet and losing weight. Is overeating important for fighting infection? I will increase Amaryl to 3mg, but will my sugar get controlled without drugs and with diet and exercise itself under normal conditions?

Thanks.

Answered by Dr. Zulfiqar Ahmed

Hi,

Welcome back to icliniq.com.

Thanks for the query. Normally your sugar level can be controlled with diet and exercise, as you have mentioned. Once you recover from the COVID-19 infection, your sugar levels will be under control. But when you are taking Dexamethasone, a steroid, it will increase the sugar level, so you need some medicines to control your sugar level, which is happening right now. You should not overeat, but you should eat a well-balanced diet, including proteins, carbohydrates, and fats. Just try to keep carbohydrates a little less. Take eggs, chicken, yogurt, salad, and few fruits into your diet. Continuous high sugar levels can delay the recovery process of any disease, including COVID-19. But rigorous control of sugar level is not advised. Keep your targets, as I have already mentioned. The same is valid for immunity. It is essential to keep yourself very hydrated with fluids and water. Do simple exercises like walking if you do not feel sick.

Patient's Query

Thanks for the reply, doctor,

I am trying to walk within my room. So even if I follow a strict diet, will it not help? I will try to eat chicken and egg more. My uric acid level is 9.1 mg/dL. So I will try not to consume more bread, and can I include more protein like chicken, eggs, soup, and salads? Is this the right thing to do in the COVID-19 condition? Should I drink as much water as I can, or how many liters of water can I make sure to drink per day?

Answered by Dr. Zulfiqar Ahmed

Hi,

Welcome back to icliniq.com.

It is good to walk even within your house. You can keep your steps to nearly 7000 a day, or if you can reach 10000, it is excellent. Once you are on Dexamethasone, it is almost impossible to keep your sugar levels down without medication. I am not aware of your high uric acid levels, but if your uric acid is high, you need to be careful about protein intake. You can still take in moderate amounts like one egg on alternate days. In this scenario, salads and fibers are better choices. For the COVID-19 infection, more fluid is beneficial. Take about two to three liters of water. It is better to take warm water.

Ginger, clove, black pepper, garlic, cinnamon, and green tea are better options. Sleep seven to eight hours a day. Go to bed by 9.30 PM to 10 PM, that is when the sleep hormone melatonin is secreted and gives a refreshing sleep. Try to control your stress by reading books of interest, watching television or any movie, listening to music, and doing meditation. All these can soothe your mind. You can even do breathing exercises to relax.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Zulfiqar Ahmed
Dr. Zulfiqar Ahmed

Diabetology

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