People who took a cheap diabetes drug after testing positive for Covid-19 had a 40 per cent lower risk of getting long Covid.
The finding was hailed as a potential"landmark" in the fight against the still little-understood condition, which the World Health Organization estimates affects one in 10 people who get Covid-19.
After 10 months, 35 of the participants who took metformin were diagnosed with long Covid, compared to 58 for the placebo group, representing a 40 per cent reduction in risk. Dr Carolyn Bramante, a researcher at the University of Minnesota and the new study's lead author told AFP that"our data show that metformin reduces the amount of SARS-CoV-2 virus" in patients.Dr Jeremy Faust, a doctor at Harvard Medical School not involved in the study, said in a linked comment piece that if confirmed, the findings"are profound and potentially landmark" for long Covid.
The researchers cautioned that they did not test metformin on people who had already been diagnosed with long Covid, so the findings did not mean it could be used to treat the condition.
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