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Is Taking Metformin After A CT Scan With Contrast Harmful?

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Posted on Tue, 22 Dec 2015
Question: I accidently took 1 metformin after a ct scan with contrast
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Answered by Dr. Binu Parameswaran Pillai (2 hours later)
Brief Answer:
VERY VERY rare

Detailed Answer:
Good day.
noted your concern.
not to worry. CT scan contrast can cause renal damage sometimes. if that happens , metformin cannot be excreted out of body by kidney efficiently and there is a risk of lactic acidosis. . however this risk of lactic acidosis is very very minimal and rarely seen. Lactic acidosis with metformin is largely seen in text books rather than in clinical practice. Not to worry. drink plenty of water. Get a serum creatinine and urea checked today or tomorrow.
Regards
Binu
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Binu Parameswaran Pillai

Endocrinologist

Practicing since :2003

Answered : 1439 Questions

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Is Taking Metformin After A CT Scan With Contrast Harmful?

Brief Answer: VERY VERY rare Detailed Answer: Good day. noted your concern. not to worry. CT scan contrast can cause renal damage sometimes. if that happens , metformin cannot be excreted out of body by kidney efficiently and there is a risk of lactic acidosis. . however this risk of lactic acidosis is very very minimal and rarely seen. Lactic acidosis with metformin is largely seen in text books rather than in clinical practice. Not to worry. drink plenty of water. Get a serum creatinine and urea checked today or tomorrow. Regards Binu