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Expired Metformin

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#1
don1942

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My sister-in-law gave me a bottle of Metformin which she stopped taking because it was causing her problems. The expiration date was last May. Does Metformin, have a short shelf life or do you think it will still be effective?
Diag T2 1993
Started Minimed 03/12/10 CGMS 4/29/10
Symlin as needed
Metformin 1000mg x 2
Pravastatin 40mg x 1
Zetia 10mg x 1
Vitamin B, C, D, E, Fish Oil

#2
Cormac_Doyle

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Met generally has quite a long shelf life - the box I have that I got a month ago has an expiry date some time in 2014 ...

However as long as they have been kept dry and avoided major heat shocks, they should be fine :)

HbA1c
2007/2008 - Sept 07: 10.9; Feb 08: 8.5; Sept 08: 7.3;
2009 - Feb: 7.5; Apr: 6.4; Aug: 6.1;
2010 - Jan: 7.0; Mar: 6.4; Jun: 6.1; Oct: 5.9;
2011 - Jan: 6.4; Apr: 6.5; Aug: 6.3; Nov: 6.2;
2012 - Mar: 6.7; May: 6.3; June: 6.2; Sep: 5.4; Dec: 6.0;
2013 - Mar: 6.1; May: 6.5; July: 6.3; Nov: 6.1;
2014 - Apr: 6.3; Nov: 6.5

Meds - Glucophage: 2000mg; Omega 3: 4000mg; Crestor: 20mg; Victoza: 1.8mg; Humulin: 225-350 iu ( originally 1800-2400 iu daily)

Started Pump: 10th April 2011 - Minimed Paradigm Veo


#3
kattie453

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Hello, have you ever heard that meds don't actually experied until 30 years later? I read it and it actually makes sense. To answer your question it doesn't matter.

#4
Cormac_Doyle

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Met is generally formulated as a solid/hard tablet. This type of medication has the longest shelf life. If it has been stored in an air-tight container, in low humidity and has not suffered any major heat shocks, it should still be fine.

If it is in any way damp - throw it out right away; even if it is still "in-date"

HbA1c
2007/2008 - Sept 07: 10.9; Feb 08: 8.5; Sept 08: 7.3;
2009 - Feb: 7.5; Apr: 6.4; Aug: 6.1;
2010 - Jan: 7.0; Mar: 6.4; Jun: 6.1; Oct: 5.9;
2011 - Jan: 6.4; Apr: 6.5; Aug: 6.3; Nov: 6.2;
2012 - Mar: 6.7; May: 6.3; June: 6.2; Sep: 5.4; Dec: 6.0;
2013 - Mar: 6.1; May: 6.5; July: 6.3; Nov: 6.1;
2014 - Apr: 6.3; Nov: 6.5

Meds - Glucophage: 2000mg; Omega 3: 4000mg; Crestor: 20mg; Victoza: 1.8mg; Humulin: 225-350 iu ( originally 1800-2400 iu daily)

Started Pump: 10th April 2011 - Minimed Paradigm Veo


#5
genefegan

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Hello, did you know that medications do not expired?

#6
kattie453

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Hello, this a research that says that meds have 15 years until they expired. I don't think any one would drink something 15 years later but you can drink it if its 2 months old.

#7
GrammaBear

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My sister-in-law gave me a bottle of Metformin which she stopped taking because it was causing her problems. The expiration date was last May. Does Metformin, have a short shelf life or do you think it will still be effective?


If I were you, I would talk to a Pharmacist to be sure that what you are taking is SAFE for you to be taking.

Medtronic Revel 723 pump with Novolog - August 2010

Dexcom CGM - September 2007


#8
Bountyman

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If I were you, I would talk to a Pharmacist to be sure that what you are taking is SAFE for you to be taking.


Any care professional will side with the package instructions so that they can't be held accountable. How long something lasts beyond its expiration date is strictly anecdotal.

#9
genefegan

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Hello, well i think you should just go to the doctor and stop listening to these people.