Available inTablet, Tablet
Dosage500mg, 850mg, 1000mg
ManufacturerAngita Pharma, Apotex, Auro Pharma
Available inTablet
Dosage500mg, 1000mg
ManufacturerBausch Health, Mantra Pharma, Sandoz
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The recommended adult dose of metformin ranges from 500 mg 3 or 4 times a day to 850 mg 2 or 3 times a day. The maximum daily dose should not exceed 2,550 mg. Tablets should be taken with food whenever possible to reduce the risk of nausea and vomiting. Metformin may be used alone or with other medications that reduce blood sugar. To ensure that the medication is working well, monitor your blood glucose on a regular basis as directed by your doctor or diabetes educator.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take Metformin exactly as prescribed by your doctor. If you miss a dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store Metformin at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
The recommended starting dose of Glumetza (Metformin) extended release tablets for adults is 1,000 mg once daily, to be taken with food in the evening. The maximum daily dose should not exceed 2,000 mg. Glumetza (Metformin) may be used alone or with other medications that reduce blood sugar. To ensure that the medication is working well, monitor your blood glucose on a regular basis as directed by your doctor or diabetes educator.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take Glumetza (Metformin) exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is less than 10 hours until your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store Glumetza (Metformin) at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.
The side effects listed below are not experienced by everyone who takes Metformin. If you are concerned about side effects, discuss the risks and benefits of Metformin with your doctor.
The following side effects have been reported by at least 1% of people taking Metformin. Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
Stop taking the medication and seek immediate medical attention if any of the following occur:
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking Metformin.
Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.
The side effects listed below are not experienced by everyone who takes Glumetza (Metformin). If you are concerned about side effects, discuss the risks and benefits of Glumetza (Metformin) with your doctor.
The following side effects have been reported by at least 1% of people taking Glumetza (Metformin). Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
Stop taking the medication and seek immediate medical attention if any of the following occur:
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking Glumetza (Metformin).
500 mg
Each white, round, biconvex, coated tablet, imprinted "met" over "500" on the scored side and "P" logo on the other side, contains metformin HCl 500 mg. Nonmedicinal ingredients: colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl methylcellulose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone PVK-90, and pregelatinized starch.
850 mg
Each white, capsule-shaped, biconvex, coated tablet, imprinted "P" logo on one side and "850" on the other side, contains metformin 850 mg. Nonmedicinal ingredients: colloidal silicon dioxide, croscarmellose sodium, hydroxypropyl methylcellulose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone PVK-90, and pregelatinized starch.
500 mg
Each white, film-coated, oval-shaped tablet, debossed with "M 500", contains Glumetza (Metformin) HCl 500 mg. Nonmedicinal ingredients: hypromellose, microcrystalline cellulose, magnesium stearate, polyethylene glycol, polysorbate, titanium dioxide, and polyethylene oxide.
1000 mg
Each white, oval-shaped tablet, printed with "M 1000" contains Glumetza (Metformin) HCl 1000 mg. Nonmedicinal ingredients: colloidal silicon dioxide, crospovidone, glyceryl behenate, polyvinyl alcohol, polyacrylate dispersion, hypromellose, talc, polyethylene glycol, titanium dioxide, simethicone emulsion, polysorbate, shellac glaze, iron oxide black, macrogol, n-butyl alcohol, propylene glycol, FD&C Blue No. 2, FD&C Yellow No. 6, and FD&C Red No. 40.
Do not take Metformin if you:
Do not take Glumetza (Metformin) if you:
There may be an interaction between metformin and any of the following:
If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:
An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.
Medications other than those listed above may interact with Metformin. Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.
There may be an interaction between Glumetza (Metformin) and any of the following:
If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:
An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.
Medications other than those listed above may interact with Glumetza (Metformin). Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.
Before you begin taking a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should take Metformin.
Alcohol intake: Anyone taking metformin should avoid excessive alcohol intake.
Blood sugar control: If you have fever, trauma, infection, or surgery, you may have a temporary loss of blood sugar control. At such times, your doctor may think it is necessary to stop metformin and temporarily inject insulin. Metformin may be started again after the problem is resolved.
Blood sugar monitoring: Monitor your blood sugar regularly at intervals as discussed with your doctor or diabetes educator.
Diabetes complications: The use of metformin (or any other medication used for diabetes) will not prevent the development of complications particular to diabetes mellitus (e.g., Kidney Disease, nerve disease, eye disease).
Diet: Metformin is a treatment to be taken in combination with a proper diet. Metformin is not a substitute for proper diet.
Dye or contrast agents: If you are going to have an X-ray procedure that uses dye or a contrast agent, you may need to stop taking Metformin for a short time. Contact your doctor for instructions.
Kidney problems: Kidney disease or reduced kidney function causes Metformin to build up in the body, causing side effects. If you have kidney problems, your doctor should closely monitor your condition while you are taking metformin, as it may affect kidney function.
Lactic acidosis: Lactic acidosis is a rare but serious problem that occurs due to metformin accumulation (i.e., the body doesn't get rid of it fast enough) during treatment. If you have severe kidney disease you are at higher risk of developing lactic acidosis. Since alcohol may increase the risk of lactic acidosis, do not drink a lot of alcohol over the short- or long-term while taking Metformin. When it does occur (very rarely), it is fatal in 50% of cases. There have been no reports of lactic acidosis in Canada when metformin was used as directed. If you experience symptoms of lactic acidosis (e.g., weakness, tiredness, drowsiness, unusual muscle pain, trouble breathing, stomach pain with nausea, vomiting or diarrhea, feeling cold, dizziness, light-headedness, or slow or irregular heartbeat), stop taking Metformin and get immediate medical attention.
Liver function: Decreased liver function has been linked to lactic acidosis. Metformin is not recommended for people with severely reduced liver function. If you have moderately reduced liver function, discuss with your doctor how Metformin may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Metformin, and whether any special monitoring is needed.
Low blood sugar: Under usual circumstances, low blood sugar does not occur for people who take only metformin. Low blood sugar could occur when not enough food is eaten, especially when strenuous exercise is undertaken at the same time or when large amounts of alcohol have been consumed.
Reduced response: Over a period of time, you may become progressively less responsive to a particular treatment for diabetes because your diabetes worsens. If metformin fails to lower blood sugar to target levels, talk to your doctor. Your doctor may want to stop metformin or recommend another medication.
Surgery: Metformin should be stopped temporarily for surgery (except for minor surgery where food and fluid intake is not restricted). You will be restarted on Metformin once you are eating and drinking and your kidney function has been tested and is normal. Talk to your doctor for specific instructions.
Vitamin B12 levels: Metformin may decrease vitamin B12 levels. Your doctor will monitor your B12 levels with blood tests while you are taking Metformin.
Pregnancy: Metformin should not be used during pregnancy. If you become pregnant while taking Metformin, contact your doctor immediately.
Breast-feeding: Metformin is believed to pass into breast milk. Metformin should not be used if you are breast-feeding.
Children: The safety and effectiveness of Metformin have not been established for children.
Seniors: Kidney function often decreases with age. As a result, seniors may be more likely to experience side effects of Metformin.
Before you begin taking a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should take Glumetza (Metformin).
Alcohol intake: Anyone taking Glumetza (Metformin) should avoid excessive alcohol intake.
Blood sugar control: If you have fever, trauma, infection, or surgery, you may have a temporary loss of blood sugar control. At such times, your doctor may think it is necessary to stop Glumetza (Metformin) and temporarily inject insulin. Glumetza (Metformin) may be started again after the problem is resolved.
Blood sugar monitoring: Monitor your blood sugar regularly at intervals as discussed with your doctor or diabetes educator.
Diabetes complications: The use of Glumetza (Metformin) (or any other medication used for diabetes) will not prevent the development of complications particular to diabetes mellitus (e.g., Kidney Disease, nerve disease, eye disease).
Diet: Glumetza (Metformin) is a treatment to be taken in combination with a proper diet. Glumetza (Metformin) is not a substitute for proper diet.
Dye or contrast agents: If you are going to have an X-ray procedure that uses dye or a contrast agent, you may need to stop taking Glumetza (Metformin) for a short time. Contact your doctor for instructions.
Kidney problems: Kidney disease or reduced kidney function causes Glumetza (Metformin) to build up in the body, causing side effects. If you have kidney problems, your doctor should closely monitor your condition while you are taking Glumetza (Metformin), as it may affect kidney function.
Lactic acidosis: Lactic acidosis is a rare but serious problem that occurs due to Glumetza (Metformin) accumulation (i.e., the body doesn't get rid of it fast enough) during treatment. If you have severe kidney disease you are at higher risk of developing lactic acidosis. Since alcohol may increase the risk of lactic acidosis, do not drink a lot of alcohol over the short- or long-term while taking Glumetza (Metformin). When it does occur (very rarely), it is fatal in 50% of cases. There have been no reports of lactic acidosis in Canada when Glumetza (Metformin) was used as directed. If you experience symptoms of lactic acidosis (e.g., weakness, tiredness, drowsiness, unusual muscle pain, trouble breathing, stomach pain with nausea, vomiting or diarrhea, feeling cold, dizziness, light-headedness, or slow or irregular heartbeat), stop taking Glumetza (Metformin) and get immediate medical attention.
Liver function: Decreased liver function has been linked to lactic acidosis. Glumetza (Metformin) is not recommended for people with severely reduced liver function. If you have moderately reduced liver function, discuss with your doctor how Glumetza (Metformin) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Glumetza (Metformin), and whether any special monitoring is needed.
Low blood sugar: Under usual circumstances, low blood sugar does not occur for people who take only Glumetza (Metformin). Low blood sugar could occur when not enough food is eaten, especially when strenuous exercise is undertaken at the same time or when large amounts of alcohol have been consumed.
Reduced response: Over a period of time, you may become progressively less responsive to a particular treatment for diabetes because your diabetes worsens. If Glumetza (Metformin) fails to lower blood sugar to target levels, talk to your doctor. Your doctor may want to stop Glumetza (Metformin) or recommend another medication.
Surgery: Glumetza (Metformin) should be stopped temporarily for surgery (except for minor surgery where food and fluid intake is not restricted). You will be restarted on Glumetza (Metformin) once you are eating and drinking and your kidney function has been tested and is normal. Talk to your doctor for specific instructions.
Vitamin B12 levels: Glumetza (Metformin) may decrease vitamin B12 levels. Your doctor will monitor your B12 levels with blood tests while you are taking Glumetza (Metformin).
Pregnancy: Glumetza (Metformin) should not be used during pregnancy. If you become pregnant while taking Glumetza (Metformin), contact your doctor immediately.
Breast-feeding: Glumetza (Metformin) is believed to pass into breast milk. Glumetza (Metformin) should not be used if you are breast-feeding.
Children: The safety and effectiveness of Glumetza (Metformin) have not been established for children.
Seniors: Kidney function often decreases with age. As a result, seniors may be more likely to experience side effects of Glumetza (Metformin).
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