Outside of their work, other scientists are hailing metformin as a wonder drug not only because of its effect on Type 2 diabetes, but because of its emerging prominence in cancer research and potential influence in the lungs of those diagnosed with tuberculosis.
More serious side effects are rare. They include severe allergic reactions and a condition called lactic acidosis, a buildup of lactic acid in the bloodstream. The risk for this is higher among people with significant kidney disease, so doctors tend to avoid prescribing metformin for them.
Metformin can decrease your risk of developing diabetes. Studies show that people with obesity and metabolic syndrome who took metformin decreased their risk of developing diabetes by 30%. And the benefits lasted long term — the risk of developing diabetes decreased 18% over 15 years.
Long-term side effects
Taking metformin can cause vitamin B12 deficiency if you take it for a long time. This can make you feel very tired, breathless and faint, so your doctor may check the vitamin B12 level in your blood. If your vitamin B12 levels become too low, vitamin B12 supplements will help.
The use of metformin by non-diabetics stems from some evidence that metformin can decrease inflammation, protect against cardiovascular disease and cognitive impairment, minimize cancer risk and progression, and prolong life.
Here are the other long-term benefits you can expect: You'll have more energy as your body uses insulin more efficiently. Common diabetes-related symptoms, such as blurry vision, being thirsty all of the time, or having to pee a lot, improve or disappear.
Metformin does cause side effects in some people, but many of these are mild, and are associated with taking the medicine for the first time. Nausea and gastric distress such as stomach pain, gas, bloating, and diarrhea are somewhat common among people starting up on metformin.
How to check if metformin is working. A medical provider can run a few tests to see how metformin is affecting your health: Blood work can check if your glucose, insulin, and HbA1C levels are in range. If they are, the medication is working.
Nausea, vomiting, and diarrhea are some of the most common side effects people have when they first start taking metformin. These problems usually go away over time. You can reduce these effects by taking metformin with a meal.
Metformin reduces high blood sugar, but rarely lowers blood sugar to levels below normal. Most other drugs have the potential to cause life-threatening hypoglycemia (low blood sugar). This drug can be continued even if it becomes necessary to start insulin.
Recent studies have also found that metformin has a positive effect on cardiovascular protection [8,9,10,11,12]. Metformin also lowers risk factors for cardiovascular disease such as blood fats [13,14,15], body weight and blood pressure.
They noted that in observational studies there was a significant association of exposure to metformin with the risk of cancer death, all malignancies, liver, colorectal, pancreas, stomach, and esophagus.
Metformin (brand name: Glucophage) will be in your system for 96.8 hours which is approximately 4 days. Metformin has an elimination half-life of approximately 17.6 hours.
How long does it take to work? Metformin does not instantly reduce blood sugar levels. The effects are usually noticeable within 48 hours of taking the medication, and the most significant effects take 4–5 days to occur. However, the timing depends on the person's dosage.
Why Shouldn't You Stop Taking Metformin? Metformin works by decreasing the amount of sugar your liver releases into your blood, making your body more sensitive to insulin's effects. If you suddenly discontinue use, it can lead to dangerously high blood sugar levels.
If you experience any of the following symptoms, stop taking metformin and call your doctor immediately: extreme tiredness, weakness, or discomfort; nausea; vomiting; stomach pain; decreased appetite; deep and rapid breathing or shortness of breath; dizziness; lightheadedness; fast or slow heartbeat; flushing of the ...
The UKPDS results, including glycemic-lowering efficacy, the weight benefits, the low risk for hypoglycemia, and the reduction in macrovascular complications, led to metformin becoming the preferred first-line therapy for treatment of type 2 diabetes.
Metformin lowers oxidative stress and inflammation by activating the enzyme called AMPK (adenosine monophosphate-activated protein kinase or AMP-activated protein kinase). By reducing oxidative stress and inflammation, metformin may fight some aging effects that happen with those two factors (Drzewoski, 2021).
Longitudinal clinical studies have indicated that metformin may reduce the risk of cognitive decline in diabetic patients [2, 14]. Metformin treatment improved cognitive function and produce antidepressant effects in diabetic patients with depression [3].
Metformin may improve muscle mass, energy production and therefore your metabolism. Lastly, metformin has been shown to improve metabolism through a variety of factors. Whenever insulin resistance is present your muscles will start to atrophy.
Will I be on metformin forever? There's no way to know ahead of time how long you will need to be on metformin. If you fall into the high-risk category, you're more likely to be taking it sooner and for longer than those at a lower risk of developing diabetes.
Metformin had no significant effect on ambulatory blood pressure. Thus, metformin has, if any, only a minor clinically insignificant effect on blood pressure in nondiabetic hypertensives. The study does not support the hypothesis that circulating insulin is a major regulator of blood pressure in hypertension.