- Metformin did not significantly reduce COVID-19 symptom duration.
- Study conducted on 2991 participants aged 30 and older.
- Median recovery time: 9 days for metformin, 10 for placebo.
- Safety events were rare, with no cases of lactic acidosis.
- Majority of participants had 2 or more COVID-19 vaccine doses.
Source: JAMA Internal Medicine
