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Thread: Insulin + Sulphonylurea

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    Pharmanaut's Avatar
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    Insulin + Sulphonylurea

    How commonly prescribed is Insulin + sulphonylurea.
    Anyone summarise the treatment rationale?
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    johnep is offline Moderator
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    Re: Insulin + Sulphonylurea

    My brother had metformin and injected insulin, towards the end of his life he would have an icecream and then inject some insulin to compensate.
    johnep

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    Re: Insulin + Sulphonylurea

    Quote Originally Posted by johnep View Post
    My brother had metformin and injected insulin, towards the end of his life he would have an icecream and then inject some insulin to compensate.
    johnep
    Insulin + Biguanide (metformin) - have seen around 8 people on that.
    Most of them tend to be towards the 'heavy end' of the scales.
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    laura/nottingham is offline Fantastic Member
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    Re: Insulin + Sulphonylurea

    I'm 18, on insulin and Metformin (well meant to be) I don't take it, They made my blood all over the place, and not only that, I'm on an insulin pump, which I am connected to 24/7. Similiar to what Johnep with insulin pumps, having to count carbohydrates is essential to get good control. The reason why they use insulin and Metformin is to help with insulin resistance. So I've heard.

    Pharmanaut, what do you mean by, 'Most of them tend to be towards the 'heavy end' of the scales'?

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    Re: Insulin + Sulphonylurea

    Problem with sulphonylureas + insulin is that they can both cause hypoglycaemia, which is more common with the long acting sulph'ureas chlorpropamide and glibenclamide. Also both drugs can cause weight gain. Metformin however is less prone to cause weight gain, which is probably why more patients take insulin + metformin rather than insulin + sulph'urea.
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    Pharmanaut's Avatar
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    Re: Insulin + Sulphonylurea

    Quote Originally Posted by laura/nottingham View Post
    I'm 18, on insulin and Metformin (well meant to be) I don't take it, They made my blood all over the place, and not only that, I'm on an insulin pump, which I am connected to 24/7. Similiar to what Johnep with insulin pumps, having to count carbohydrates is essential to get good control. The reason why they use insulin and Metformin is to help with insulin resistance. So I've heard.

    Pharmanaut, what do you mean by, 'Most of them tend to be towards the 'heavy end' of the scales'?
    The location where I practice (South "eee by 'eck" Yorkshire) most of the patients on insulin and Metformin tend to be late type II diabetics who are overweight, hence me politely saying 'heavy end of the scales'.

    Back to the original question.
    Metformin allows glucose into peripheral cells.
    Sulphonylureas stimulate insulin secretion. So what's the rationale of giving them (in this case gliclazide) with Insulin (Lantus). Must be a simple explanation?
    Where am I?; In the Pharmacy.
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    Nik's Avatar
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    Re: Insulin + Sulphonylurea

    Couple of other things sulph'ureas do - increased tissue sensitivity to insulin + possibility also increased bioavailability due to less extraction from pancreas. Maybe these are the reasons for both being given together
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    ramroum is offline Top-Class Member
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    Re: Insulin + Sulphonylurea

    Quote Originally Posted by Pharmanaut View Post
    Back to the original question.
    Metformin allows glucose into peripheral cells.
    Sulphonylureas stimulate insulin secretion. So what's the rationale of giving them (in this case gliclazide) with Insulin (Lantus). Must be a simple explanation?
    Is combination sulfonylurea and insulin therapy useful in NIDDM patients? A metaanalysis -- Pugh et al. 15 (8): 953 -- Diabetes Care
    With combined therapy, lower insulin doses may be used to achieve similar control. Obese patients with higher fasting C-peptides may be more likely to respond than others.

    http://www.diabetesincontrol.com/mod...rticle&sid=123
    CONCLUSIONS—Early addition of insulin when maximal sulfonylurea therapy is inadequate can significantly improve glycemic control without promoting increased hypoglycemia or weight gain.
    Last edited by ramroum; 14th, March 2009 at 07:34 PM.

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    Pharmanaut's Avatar
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    Re: Insulin + Sulphonylurea

    Quote Originally Posted by ramroum View Post
    Is combination sulfonylurea and insulin therapy useful in NIDDM patients? A metaanalysis -- Pugh et al. 15 (8): 953 -- Diabetes Care

    With combined therapy, lower insulin doses may be used to achieve similar control. Obese patients with higher fasting C-peptides may be more likely to respond than others.
    Thanks for that.
    I feel a bit of CPD coming on.
    Where am I?; In the Pharmacy.
    Who are you?; The new Number 2.
    Who is number 1?; You are number 6.
    What do you want?;..................

  10. #10
    Jeff Guest

    Re: Insulin + Sulphonylurea

    So did you give it before finding out the rational - or did you delay dispensing until you were satisfied that it was suitable?

    Jeff

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