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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Canesten Pills Increase Sugar Levels ?

dear doctor,am suffering from thrush....i have taken canesten capusule....before taking the pill i have checked my sugar levels n it was normal....but after taking the pill my sugar levels are very high....am not a diabetic patient tooo......but why does it happened....
posted on Fri, 14 Mar 2014
Twitter Fri, 21 Nov 2025 Answered on
Twitter Tue, 2 Dec 2025 Last reviewed on
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General & Family Physician 's  Response
Hello,

Canesten (clotrimazole) capsule does not increase blood sugar levels. It is an antifungal medication. It has nothing to do with glucose metabolism. Therefore, the high reading is most probably not due to this pill. What typically happens in such cases is one of the following:

1. The thrush itself reflects an underlying sugar fluctuation. Fungal infections love to breed when sugar is high, even temporarily in the body. Many are first made aware of thrush before they are even aware that their glucose has been irregular. So infection may well be the result of sugar variation rather than the cause.

2. Stress, anxiety, pain, or lack of sleep may raise sugar. The body releases stress hormones, which increase glucose even among non-diabetic people.

3. The matter of timing or method of testing may prove relevant. The number will be falsely high if one has eaten recently, used a different meter strip, or has residue on one's finger.

4. Your body might have had a temporary spike unrelated to medication. This happens sometimes and settles on its own. Monitoring is what matters right now. If over the next day or two your sugar goes back to normal, then it was a temporary fluctuation. If you continue to notice high readings, it would be prudent to get a fasting sugar and possibly an HbA1c checked once, just to be on the safe side.

But again, this is not because of Canesten, so do not worry about continuing with your treatment for thrush.

Take care. Hope I have answered your question. If you have any further query I will be happy to help. Wish you good health.

Regards,
Dr. Usaid Yousuf, General and Family Physician
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Does Canesten Pills Increase Sugar Levels ?

Hello, Canesten (clotrimazole) capsule does not increase blood sugar levels. It is an antifungal medication. It has nothing to do with glucose metabolism. Therefore, the high reading is most probably not due to this pill. What typically happens in such cases is one of the following: 1. The thrush itself reflects an underlying sugar fluctuation. Fungal infections love to breed when sugar is high, even temporarily in the body. Many are first made aware of thrush before they are even aware that their glucose has been irregular. So infection may well be the result of sugar variation rather than the cause. 2. Stress, anxiety, pain, or lack of sleep may raise sugar. The body releases stress hormones, which increase glucose even among non-diabetic people. 3. The matter of timing or method of testing may prove relevant. The number will be falsely high if one has eaten recently, used a different meter strip, or has residue on one s finger. 4. Your body might have had a temporary spike unrelated to medication. This happens sometimes and settles on its own. Monitoring is what matters right now. If over the next day or two your sugar goes back to normal, then it was a temporary fluctuation. If you continue to notice high readings, it would be prudent to get a fasting sugar and possibly an HbA1c checked once, just to be on the safe side. But again, this is not because of Canesten, so do not worry about continuing with your treatment for thrush. Take care. Hope I have answered your question. If you have any further query I will be happy to help. Wish you good health. Regards, Dr. Usaid Yousuf, General and Family Physician