The number one side effect of metformin is gastrointestinal (GI) upset, especially diarrhea, nausea, gas, and stomach cramps, which are most common when starting the medication and often improve over time. Taking metformin with food, starting at a low dose, and using extended-release (ER) tablets can help minimize these effects, while serious but rare risks like lactic acidosis require immediate medical attention.
The most common side effects of metformin are gastrointestinal (GI) issues, such as nausea, diarrhea, vomiting, heartburn, loss of appetite, stomach pain, stomach upset, and a metallic taste in the mouth (Bonnet, 2016).
Obesity does not predispose one to migraines, but in those who do suffer from migraines increased weight is associated with an increased frequency and severity of migraine attacks. Since metformin is proven to help reduce weight, this could be one of the mechanisms by which it improves migraines.
It's also possible for your blood sugar to go too low while you're asleep. If this happens, it can make you feel sweaty, tired and confused when you wake up.
Metformin, a widely used antidiabetic and antiobesity drug, exerts multiple effects on the skin, and could potentially induce a variety of dermatoses. Among others, the most commonly described drug-induced skin reactions include rash, urticaria, and lichenoid eruption.
Necrobiosis lipoidica diabeticorum (NLD): This lower leg rash is more common in women. NLD causes raised, red, shiny patches with a yellow center. Blood vessels may be more noticeable. The rash may be itchy and painful.
Metformin may play a beneficial role in inflammatory skin diseases, such as acne, hidradenitis suppurativa, acanthosis nigricans, rosacea and psoriasis. Metformin has a potential in promoting wound healing and in reducing skin ageing. It may also modulate skin barrier function and cutaneous immune responses.
As already discussed, metformin can result in sleep disturbance, and this might affect normal dream patterns. Nightmares are reported in patients receiving metformin. [7] However, they are less frequent than insomnia.
People with type 1 diabetes tend to sweat more than usual in the upper body and less than usual in the lower body, which can lead to overall anhidrosis, according to research. They may also have lower blood volume and less effective blood flow. These cardiovascular problems can also contribute to overheating.
Many studies have found that metformin combined with exercise therapy can inhibit muscle mass loss and loss of function (Hernández-Álvarez et al., 2019; Hernández-Arciga et al., 2020; Toledo-Pérez et al., 2021).
Key Takeaways
If you get a headache from diabetes, it is important to first check and treat blood sugar imbalances. If head pain persists, over-the-counter pain relievers like acetaminophen (Tylenol) or ibuprofen (Advil) can provide relief.
Metformin (200 mg/kg/day, oral administration for 8 weeks) improve learning and memory ability, neurological dysfunction and oxidative stress, and reduced Aβ levels and increased the expression of synaptic-related genes [194]. Metformin activates AMPK signaling pathway and upregulates the insulin-degrading enzyme.
Conclusions: People with diabetes taking metformin were less likely to report back, knee, neck/shoulder and multisite musculoskeletal pain than those not taking metformin. Therefore, when treating these patients, clinicians should be aware that metformin may contribute to fewer reports of musculoskeletal pain.
Metformin has a relatively short half-life in the body, meaning it needs to be taken regularly to maintain therapeutic levels ((Lee, 1996)). Taking it every other day would likely result in inconsistent blood glucose control.
However, individuals taking metformin to help regulate their blood sugar should speak with a doctor before adding Pepto-Bismol since the combination might result in adverse effects.
Symptoms of hyperglycaemia
Diabetes can cause sweat to smell sweet, fruity, or like nail polish remover due to high ketone levels from uncontrolled blood sugar (diabetic ketoacidosis or DKA), a serious complication requiring immediate medical attention, often accompanied by excessive thirst, urination, weakness, nausea, or confusion. In some cases, uncontrolled diabetes might also lead to sweat smelling like ammonia, especially with kidney issues, or cause increased sweating.
Sitting in the sun for long periods may affect your diabetes because you're not being very active, making blood sugar levels higher than usual. On the flipside, if you take insulin to treat your diabetes it may be absorbed more quickly from the injection site in warm weather, and this increases the risk of hypos.
The administration of metformin, as glucophage retard, at bedtime instead of supper time may improve diabetes control by reducing morning hyperglycemia.
There are lots of things that can influence how well we sleep, such as our current physical or mental health, our upbringing, things that happen to us, and even our temperament. However, bad sleep habits or poor sleep hygiene, such as not relaxing or winding down before bed, often cause sleep problems.
If you stop taking metformin suddenly, your blood sugar levels will go up and your diabetes will get worse. If you're taking metformin to help with polycystic ovary syndrome (PCOS), your doctor will tell you how long to take it for.
If you have Type 2 diabetes or risk factors for developing diabetes, talk with your healthcare professional about metformin. It's one of the most effective, safe, and commonly used medications for lowering blood sugar. Metformin isn't currently recommended for anti-aging benefits, and more research is needed.
Common metformin side effects include diarrhea, nausea, and vomiting. It can also cause fatigue, weight loss, and low vitamin B12 levels. While uncommon, metformin can also cause blood glucose to drop too low and lactic acidosis. In severe cases, these side effects are medical emergencies.
Metformin is a first-choice medication for managing Type 2 diabetes. But it can sometimes lower your vitamin B12 levels. You can increase the amount of vitamin B12 in your diet to help keep your levels up while taking metformin. But it's best to avoid taking a B12 supplement unless your prescriber recommends it.