# \[e-drug\] Antidiabetic drugs (cont)

**URL:** <https://talk.edrugplus.org/t/e-drug-antidiabetic-drugs-cont/14976>\
**Category:** e-drug\
**Created:** [September 23, 2002, 10:26pm UTC](https://talk.edrugplus.org/t/e-drug-antidiabetic-drugs-cont/14976 "2002-09-23T22:26:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Perla\_Mordujovich1](https://avatars.discourse-cdn.com/v4/letter/p/73ab20/32.png) [@Perla\_Mordujovich1](https://talk.edrugplus.org/u/Perla_Mordujovich1)\
**Post date:** [September 23, 2002, 10:26pm UTC](https://talk.edrugplus.org/t/e-drug-antidiabetic-drugs-cont/14976/1 "2002-09-23T22:26:37Z")

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E-drug: Antidiabetic drugs (cont)  
---------------------------------------------  
Dear Valeria and Leo Offerhaus:  
I'd like to make some commentaries related with hypoglycaemic drugs..  
1) Valeria's suggestions about 3 hypoglycaemic drugs on the current  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;WHO EDL.  
2) Leo Offerhaus' commentary about front boxes in the EDL.

1) I have participated in some of the WHO Essential Committees and I can  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exchange with both of you my opinion:

&nbsp;&nbsp;&nbsp;&nbsp;1.1-Insulin 40U/100U  
This issue has been discussed in several meetings and the reason for  
keeping the 40U is that in several nondeveloping countries is the only  
one they have. Any way, it was highlighted the intention of some of these  
countries representatives to promote changes in their own countries. There  
is a general agreement about the need of its deletion from the EDL.

&nbsp;&nbsp;&nbsp;&nbsp;1.2- Glibenclamide  
If we look at the evidences of efficacy of glucose lowering drugs , not only  
to normalize glyceaemia but, more important, to prevent or delay diabetic  
complications, the only sulfonylurea which has already demonstrated  
efficacy to prevent or delay microangiopathic complications is glibenclamide.  
In the UKPDS trial only "strict control" by glibenclamide had a  
significantly favourable effect on the incidence of the "first clinical  
complication of diabetes". Insulin and chlorpropamide had no such effect..  
The UKPDS trial followed for 10 years more than 4200 diabetics. (They had  
only 2% lost to follow-up). It has been argued that this trial had many  
methodological strengths : independent team, largely public funding, a  
protocol published in advance, relevant end points, and is pragmatic (the  
study population and the treatments corresponded to routine clinical  
practice). But also has some flaws: it was unblinded, few patients stayed on  
the initially allocated single-drug-glucose lowering regimen throughout the  
trial.  
But UKPDS is the best published trial to assess the benefit of therapies for  
patients under 65 with recent onset type 2 diabetes (patients who failed  
to be controlled only with non pharmacological treatment)

We don't have yet trial's results like these with gliclazide.  
Up to that time, we should choose glibenclamide for the treatment of non  
overweighted type 2 diabetes patients. In terms of safety, hypoglycaemia  
could be avoided selecting the exact dosage each patient need ,  
taking into account adequate diets and programme of physical  
activities.  
In terms of cost , glibenclamide is the cheapest one. An analysis of the  
comparative mean cost of treatments/month with oral hypoglycaemic drugs  
made for us last year in Argentina showed these value for both drugs:  
glibenclamide 13,50 US$/month  
gliclazide 26,40 US$/month  
So , if we take into account the best available evidence of the  
Benefit/risk/cost analysis for the  
treatment of non obese type 2 diabetes patients, we must choose  
glibenclamide. Considering its convenience, we remember the possibility of  
hypoglycaemia , so we have to add the precautions needed in choosing its  
dosage.  
References  
1-UKPDS . Group " Intensive blood-glucose control with sulphonylureas or  
insulin compared with conventional treatment and risk of complications in  
patients with type 2 diabetes" UKPDS 33 Lancet  
1998;352:854-865.

2-Management of type 2 diabetes Rev. Prescrire; 1999;19(196):448-456.

2). In relation to the square box in front of glibenclamide in the EDL , we  
must add that there is an ongoing discussion in the WHO EDL  
Committees, on the  
issue of square boxes.  
Not all drugs can be replaced by others of the same group.  
&nbsp;&nbsp;A paradigmatic example on this issue are NSAIDS. If we keep a square  
box in front of ibuprofen., we could choose naproxen or diclofenac  
instead (they belong also to the NSAIDS group) but, all three  
medicines expose patients to  
different risks of GI adverse effects. We can conclude that they are not  
exchangeable in terms of their GI safety.

With best regards

Dr Perla M Buschiazzo  
Professor of Pharmacology  
School of Medicine  
National University of La Plata  
Argentina  
"Perla Mordujovich" \<pmordujo@netverk.com.ar\>  
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