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What Happens If You Take Metformin By Accident

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Fatal Metformin Overdose Presenting With Progressive Hyperglycemia

Go to: CASE REPORT A 29-year-old man ingested metformin in a suicide attempt. The patient consumed the entire remaining contents of his father’s prescription metformin bottle that originally contained 100 tablets of 850 mg each. The father stated that the bottle had contained at least three-quarters of its original contents, putting the ingested dose between 64 and 85 grams. The patient also consumed ethanol, but denied any other co-ingestants. The parents discovered the overdose around 6:30 a.m., about 5 ½ hours post-ingestion, when the patient began complaining of vomiting, diarrhea, thirst, abdominal pain and bilateral leg pain. Paramedics were called, who found the patient to be agitated with a fingerstick glucose level of 180 mg/dL. The patient had a history of psychosis and depression, including prior suicide attempts by drug ingestion. He was not taking any prescribed medications, having discontinued olanzapine and sertraline several months earlier. The patient had no personal history of diabetes, despite the family history of type II diabetes in his father, who was taking no other anti-diabetic medications than metformin. The patient admitted to daily ethanol and tobacco Continue reading >>

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Popular Questions

  1. Niki83

    Double dose

    I took a 1000mg pill of Metformin around 3 am because I missed my dose earlier. Just checked my blood sugar and it's 210 so I took my morning dose of 1000mg. Is that ok to do? I probably should have asked that before I took it. So confused about this illness. I really need help.

  2. onlymep

    hi Niki - I'm not sure if that is too much for you? the best way to find out is keep testing using your glucometer. The maximum dosage of Metformin daily is 3000mg I was told by my endo and GP... they wouldn't put me on more than that when I was on it. I don't know if docs in other places use a higher dosage? But I'm thinking if you've only taken 2000mg you should be Ok. What was the timeframe between each tablet? Usually anything over 6-8 hours is Ok for most drugs. If you're not sure though it's a good idea to discuss this with your docs. They are the best people to advise you how to take your medication. A pharmacist may also be able to offer some advice too. Make sure you keep quick acting carbs close at hand just in case too (yes, I did have some hypos on Metformin which I know some people haven't experienced). Let us know how you go.

  3. Niki83

    Thank you OnlyMep. You have been such a big help to me.

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