Common use

Glucophage is one of the most widely prescribed oral diabetes medications in the world, serving as a first-line treatment for type 2 diabetes recommended by virtually every major medical guideline. The active substance in Glucophage is metformin, a medication belonging to the biguanide class that has been used safely and effectively for diabetes treatment for over 60 years. Metformin works through multiple mechanisms to achieve reliable blood sugar control: it reduces the concentration of glucose in the blood by suppressing excessive glucose production in the liver (hepatic gluconeogenesis), decreasing the absorption of glucose from the gastrointestinal tract, and enhancing glucose utilization in peripheral tissues such as muscles.

One of the significant advantages of Glucophage over many other diabetes medications is that it stabilizes or even reduces body weight rather than causing weight gain — a crucial benefit for the many type 2 diabetes patients who struggle with obesity. Importantly, the therapeutic effect of metformin requires the presence of insulin in the blood; it works by improving your body's response to insulin (acting as an insulin sensitizer) rather than stimulating additional insulin production, which means it does not typically cause hypoglycemic reactions when used alone. Metformin also improves the fibrinolytic properties of blood, which may provide additional cardiovascular benefits.

Glucophage is primarily used to treat type 2 diabetes (diabetes mellitus) in adults, particularly in patients for whom treatment with sulfonylurea drugs alone has been ineffective, and especially in cases accompanied by obesity and insulin resistance. Beyond diabetes treatment, metformin has gained recognition as an effective PCOS treatment (polycystic ovary syndrome), helping to improve insulin sensitivity, regulate menstrual cycles, and support fertility in women with this condition. When you buy Glucophage online, you access the gold-standard diabetes medication trusted by endocrinologists worldwide. Glucophage generic versions containing metformin are widely available and provide the same proven blood sugar control at a more affordable price. If you need to buy metformin for type 2 diabetes management, insulin resistance, or PCOS treatment, Glucophage is the most established and thoroughly studied choice available.



Dosage and direction

Do not take Glucophage unless it has been prescribed to you by a healthcare provider, and do not exceed the recommended dose. Take it with a meal if your doctor has not recommended a different administration schedule — taking metformin with food helps reduce gastrointestinal side effects that are common during the initial weeks of treatment.

Glucophage is typically administered as follows for type 2 diabetes treatment in adults: the starting dose is 500 mg taken twice daily, or 850 mg taken once daily. Based on your blood glucose levels and tolerance, your doctor may gradually increase the dose of metformin over several weeks. The maximum daily dose of Glucophage is 2550 mg, usually divided into three doses taken with meals throughout the day.

Regular monitoring of blood glucose levels and periodic hemoglobin A1c testing are essential for optimal diabetes treatment outcomes. Your doctor may also periodically check your kidney function and vitamin B-12 levels during long-term metformin therapy.



Precautions

Metformin can, in rare circumstances, cause a life-threatening condition called lactic acidosis. This condition is characterized by weakness, increasing sleepiness, slow heartbeat, cold feeling, muscle pain, abdominal pain, shortness of breath, feeling light-headed, and fainting. If you experience any of these symptoms, seek immediate emergency medical attention. The risk of lactic acidosis is higher in patients with kidney impairment, liver disease, heart failure, dehydration, or excessive alcohol use.

Be attentive to symptoms of low blood sugar (hypoglycemia), which may occur if metformin is combined with other diabetes medications such as sulfonylureas or insulin. Symptoms include hunger, confusion, irritability, drowsiness, headache, weakness, fast heartbeat, tremors, sweating, and seizure — always have a source of fast-acting sugar at hand. Avoid drinking alcohol while taking Glucophage, as it increases the risk of lactic acidosis and can interfere with blood sugar control.



Contraindications

Glucophage is contraindicated in the following conditions: hypersensitivity to metformin; hyperglycemic coma; ketoacidosis; kidney failure or significant renal impairment; liver disease; heart failure; acute myocardial infarction; respiratory failure; dehydration; severe infectious diseases; extensive surgery and trauma; alcoholism; severely reduced-calorie diet (less than 1000 kcal/day); lactic acidosis (including history of previous episodes); pregnancy and breastfeeding.

Glucophage must be temporarily discontinued 2 days before any scheduled surgery, radioisotope examinations, X-ray examinations, or CT scanning involving iodinated contrast agents, and should not be resumed until at least 48 hours after the procedure and only after kidney function has been confirmed as normal. Glucophage is used with caution in patients over 60 years old or those performing heavy physical labor due to increased risk of lactic acidosis.



Side effects

The most common side effects of Glucophage are gastrointestinal in nature and may include: nausea, vomiting, gas, bloating, diarrhea, and loss of appetite. These symptoms are most common during the first few weeks of treatment and often improve as your body adjusts to the medication. Taking metformin with food can help minimize these effects.

In case of lactic acidosis, seek emergency medical help immediately. Warning signs include: weakness, increasing drowsiness, slow heartbeat, cold feeling, shortness of breath, abdominal pain, muscle pain, lightheadedness, and fainting. Long-term use of metformin may rarely cause vitamin B-12 deficiency — your doctor should monitor B-12 levels periodically.

Allergic reactions are also possible and may manifest as: hives, swelling, or skin rash. Contact your healthcare provider promptly if you experience any unusual or persistent side effects.



Drug interaction

Cimetidine (Tagamet) increases blood levels of Glucophage by affecting its metabolism and kidney clearance. Glucophage is not compatible with alcohol, which significantly increases the risk of lactic acidosis. Concomitant administration with indirect anticoagulants and Cimetidine should be done with particular caution. Glucophage enhances the metabolism of Furosemide.

Medications that may increase the blood sugar-lowering effects of Glucophage include: sulfonylurea derivatives, insulin, acarbose, MAO inhibitors, oxytetracycline, cyclophosphamide, and salicylates. Medications that may decrease the hypoglycemic effect of Glucophage include: thyroid medicines, birth control pills and other hormones, Epinephrine, Glucagon, thiazide diuretics, and nicotinic acid derivatives. Always provide your healthcare provider with a complete list of all medications you are currently taking.



Missed dose

If you forgot to take your dose of Glucophage at the scheduled time, take it as soon as you remember — preferably with food. However, if it is close to the time for your next dose, skip the missed dose and continue with your regular schedule. Do not take double doses or extra doses. Resume your usual dose the next day at the same regularly scheduled time. Consistent daily use of metformin is important for maintaining stable blood sugar control.



Overdose

Symptoms of a Glucophage overdose are primarily related to low blood sugar and lactic acidosis and may include: hunger, confusion, irritability, drowsiness, headache, weakness, tremors, sweating, fast heartbeat, and seizure. If you suspect an overdose, contact emergency medical services immediately. Severe metformin overdose can lead to lactic acidosis, which requires immediate hospital treatment.



Storage

Store Glucophage at room temperature between 20-25 C (68-77 F). Keep away from moisture, heat, and direct sunlight. Do not store in a bathroom or other humid areas. Keep out of the reach of children.



Disclaimer

We provide only general information about medications which does not cover all directions, possible drug interactions, or precautions. Information on this site cannot be used for self-treatment or self-diagnosis. Any specific instructions for a particular patient should be agreed upon with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and any mistakes it could contain. We are not responsible for any direct, indirect, special, or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.