This week, we explored Metformin, a widely prescribed Biguanide antidiabetic medication and a cornerstone in the management of Type 2 Diabetes Mellitus.
Mechanism of Action (MOA)
• Decreases hepatic glucose production (gluconeogenesis)
• Reduces intestinal absorption of glucose
• Improves insulin sensitivity in peripheral tissues, enhancing glucose uptake and utilization
Clinical Uses
Type 2 Diabetes Mellitus
PMOS/PCOS associated with insulin resistance
Gestational diabetes (in selected cases under medical supervision)
Role in PMOS
By improving insulin resistance, Metformin helps:
• Lower insulin and androgen levels
• Promote ovulation
• Improve menstrual regularity
• Support weight management
Common Adverse Effects
• Nausea
• Diarrhea
• Abdominal discomfort
• Loss of appetite
• Metallic taste
Serious Adverse Effect
Although rare, lactic acidosis is a potentially life-threatening complication, especially in patients with severe renal impairment.
Contraindications
• Severe kidney dysfunction (eGFR <30 mL/min/1.73m²)
• Metabolic acidosis
• Hypersensitivity to Metformin
Clinical Pearl
Metformin is often called more than just an antidiabetic drug because it targets the underlying insulin resistance, making it valuable in both diabetes and PMOS/PCOS management.
Thank you to everyone who participated in this week’s discussions, polls, and clinical challenges. Stay tuned for the next Drug of the Week!
Metformin is more than a diabetes drug—it targets insulin resistance, making it valuable in both Type 2 diabetes and PCOS management.
Its long-standing safety, effectiveness, and affordability continue to make it a first-line treatment worldwide.
What an excellent overview!! Metformin is still one of the most extensively studied and widely used antidiabetic medications due to its promised effectiveness, safety profile, and affordability. It also benefits in improving insulin resistance highlight its importance not only in Type 2 Diabetes Mellitus but also in PMOS management. Well summarized!!
A tiny tablet with a giant legacy. Metformin does not promise miracles, it simply helps the body do what it was designed to do, a little better. Sometimes, the most powerful medicines are the ones that work quietly in the background.
Known information. Does this reduce appetite? In case of PMOS is this a primary line of treatment in early stages ? Is this useful for weight management?
Does its metabolism vary by age?
Well sumerised. Currently it is first line of drug in both obase and non obase type 2 DM. Additionally it has advantage in reducing weight, in obase patients.
Metformin is also a key medicine for prediabetic, overweight people who faces the initial problems of diabetes along with underlying diseases like pcod (in women).
This article about Metformin summed up is truly easy to grasp. Very concised, on point and informational. This can be used every time for a quick drug review as it covered the overall profile of the drug. Keep it up.
Great summary. I find it interesting that Metformin is useful not only for Type 2 diabetes but also for managing insulin resistance in PCOS. Its safety, effectiveness, and affordability are the reasons why it continues to be a first-choice medication even after so many years.
What stands out to me is that Metformin targets insulin resistance rather than simply lowering blood glucose levels. This broader metabolic effect is probably one of the reasons it continues to be recommended as a first-line therapy in many patients with Type 2 diabetes.