Is Glyburide Safe To Take When Glucose Levels Are 300?
No, you can not.
I have gone through your query and understood your concern.
Your actual blood sugar results are high.
If this are the fasting results I can deduct that your postprandial results are very high and this means that only Lantus is not enough for you.
In these circumstances, the treatment with Glyburide is not the right treatment for you because you need insulin therapy.
I suggest consulting your treating endocrinologist for the right insulin regimen.
Hope this is helpful. Let me know if I can assist you further.