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Pronunciation: met FOR min

Brand: Fortamet, Glucophage, Glucophage XR, Glumetza, Riomet

Glucophage 500 mg Image of Glucophage 500 mg

round, white, imprinted with BMS 6060, 500

Metformin 1000 mg-WAT Image of Metformin 1000 mg-WAT

oblong, peach, imprinted with WPI WPI, 2455

Metformin 500 mg-AMN Image of Metformin 500 mg-AMN

round, white, imprinted with IP 175, 500

Metformin 500 mg-APO Image of Metformin 500 mg-APO

oblong, white, imprinted with APO500, MET

Metformin 500 mg-BAR Image of Metformin 500 mg-BAR

oval, white, imprinted with b385, 500

Metformin 500 mg-WAT Image of Metformin 500 mg-WAT

oblong, peach, imprinted with 2713, WPI

Metformin 500mg-UDL Image of Metformin 500mg-UDL

round, white, imprinted with M, 234

Metformin 850 mg-MYL Image of Metformin 850 mg-MYL

round, white, imprinted with M, 240

Metformin ER 500 mg-PAR Image of Metformin ER 500 mg-PAR

oblong, white, imprinted with 500, 6065

Fortamet 500 mg Image of Fortamet 500 mg

round, white, imprinted with LOGO 574

Metformin 1000 mg-APO Image of Metformin 1000 mg-APO

oblong, white, imprinted with APO1000

Metformin 1000 mg-BAR Image of Metformin 1000 mg-BAR

oval, white, imprinted with b 387, 10 00

Metformin 1000 mg-IVA Image of Metformin 1000 mg-IVA

oval, white, imprinted with Hourglass Logo 4432, 10 00

Metformin 1000 mg-TEV Image of Metformin 1000 mg-TEV

oval, white, imprinted with 9 3, 72 14

Metformin 500 mg ER-TEV Image of Metformin 500 mg ER-TEV

oval, white, imprinted with 7267, 9 3

Metformin 500 mg-IVA Image of Metformin 500 mg-IVA

oval, white, imprinted with LOGO 4331, 500

Metformin 500 mg-MAL Image of Metformin 500 mg-MAL

round, white, imprinted with Z, 70

Metformin 750 mg ER-BAR Image of Metformin 750 mg ER-BAR

oblong, blue, imprinted with 107, b

Metformin 850 mg-BAR Image of Metformin 850 mg-BAR

oval, white, imprinted with b386, 850

Metformin 850 mg-IVA Image of Metformin 850 mg-IVA

oval, white, imprinted with LOGO 4330, 850

Metformin 850 mg-WAT Image of Metformin 850 mg-WAT

oblong, peach, imprinted with WPI, 2775

Metformin ER 500 mg-APO Image of Metformin ER 500 mg-APO

oblong, white, imprinted with APO, XR500

Glucophage 850 mg Image of Glucophage 850 mg

round, white, imprinted with BMS 6070, 850

Glucophage XR 500 mg Image of Glucophage XR 500 mg

oblong, white, imprinted with BMS 6063, 500

Metformin 1000 mg-AMN Image of Metformin 1000 mg-AMN

oval, white, imprinted with IP 177, 10 00

Metformin 500 mg-TEV Image of Metformin 500 mg-TEV

oval, white, imprinted with 93, 48

Metformin 850 mg-AMN Image of Metformin 850 mg-AMN

round, white, imprinted with IP 176, 850

Metformin 850 mg-MUT Image of Metformin 850 mg-MUT

round, white, imprinted with MP 752

Metformin 850 mg-TEV Image of Metformin 850 mg-TEV

oval, white, imprinted with 93, 49

Metformin ER 500 mg-AMN Image of Metformin ER 500 mg-AMN

capsule, white, imprinted with IP 178

Metformin ER 750 mg-APO Image of Metformin ER 750 mg-APO

oblong, white, imprinted with APO, XR750

Metformin ER 750 mg-MYL Image of Metformin ER 750 mg-MYL

oblong, white, imprinted with M350

Glucophage 1000 mg Image of Glucophage 1000 mg

oblong, white, imprinted with 10 00, BMS 6071

Glucophage XR 750 mg Image of Glucophage XR 750 mg

oval, red, imprinted with BMS 6064, 750

Metformin 1000 mg-MUT Image of Metformin 1000 mg-MUT

oval, white, imprinted with MP 753

Metformin 1000 mg-MYL Image of Metformin 1000 mg-MYL

oval, white, imprinted with M 244

Metformin 500 mg-MUT Image of Metformin 500 mg-MUT

round, white, imprinted with MP 751

Metformin 750 mg ER-TEV Image of Metformin 750 mg ER-TEV

oval, red, imprinted with 7212, 93

Metformin ER 500 mg-MYL Image of Metformin ER 500 mg-MYL

oval, peach, imprinted with M 352

Metformin ER 750 mg-AMN Image of Metformin ER 750 mg-AMN

oval, white, imprinted with IP 179

You should not use this medication if you are allergic to metformin, or if you are in a state of diabetic ketoacidosis (call your doctor for treatment with insulin).

If you need to have any type of x-ray or CT scan using a dye that is injected into your veins, you will need to temporarily stop taking metformin.

Before taking metformin, tell your doctor if you have liver disease or a history of heart disease.

Some people develop lactic acidosis while taking metformin. Early symptoms may get worse over time and this condition can be fatal. Get emergency medical help if you have even mild symptoms such as: muscle pain or weakness, numb or cold feeling in your arms and legs, trouble breathing, stomach pain, nausea with vomiting, slow or uneven heart rate, dizziness, or feeling very weak or tired.

Metformin is an oral diabetes medicine that helps control blood sugar levels.

Metformin is for people with type 2 diabetes. Metformin is sometimes used in combination with insulin or other medications, but it is not for treating type 1 diabetes.

Metformin may also be used for purposes not listed in this medication guide.

Some people develop a life-threatening condition called lactic acidosis while taking metformin. You may be more likely to develop lactic acidosis if you have liver or kidney disease, congestive heart failure, a severe infection, if you are dehydrated, or if you drink large amounts of alcohol. Talk with your doctor about your individual risk.

You should not use this medication if you are allergic to metformin, or if you are in a state of diabetic ketoacidosis (call your doctor for treatment with insulin).

If you need to have any type of x-ray or CT scan using a dye that is injected into your veins, you will need to temporarily stop taking metformin.

To make sure you can safely take metformin, tell your doctor if you have any of these other conditions:

  • liver disease; or
  • a history of heart disease.

FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether metformin passes into breast milk or if it could harm a nursing baby. You should not breast-feed while you are using metformin.

Metformin should not be given to a child younger than 10 years old. Extended-release metformin (Glucophage XR) should not be given to a child younger than 17 years old.

Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label. Your doctor may occasionally change your dose to make sure you get the best results.

Take metformin with a meal, unless your doctor tells you otherwise. Some forms of metformin are taken only once daily with the evening meal. Follow your doctor's instructions.

Metformin is only part of a complete program of treatment that also includes diet, exercise, and weight control. It is important to use this medicine regularly to get the most benefit. Get your prescription refilled before you run out of medicine completely.

Do not crush, chew, or break an extended-release tablet (Glucophage XR). Swallow the pill whole. Breaking the pill may cause too much of the drug to be released at one time.

Your blood sugar will need to be checked often, and you may need other blood tests at your doctor's office. Visit your doctor regularly.

Check your blood sugar carefully during a time of stress or illness, if you travel, exercise more than usual, drink alcohol, or skip meals. These things can affect your glucose levels and your dose needs may also change.

Your doctor may want you to stop taking metformin for a short time if you become ill, have a fever or infection, or if you have surgery or a medical emergency.

Ask your doctor how to adjust your metformin dose if needed. Do not change your medication dose or schedule without your doctor's advice.

Your doctor may have you take extra vitamin B12 while you are taking metformin. Take only the amount of vitamin B12 that your doctor has prescribed.

Store at room temperature away from moisture, heat, and light.

Take the missed dose as soon as you remember (be sure to take the medicine with food). Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

An overdose of metformin may cause lactic acidosis. Get emergency medical help if you have any of these symptoms of lactic acidosis: weakness, increasing sleepiness, slow heart rate, cold feeling, muscle pain, shortness of breath, stomach pain, feeling light-headed, and fainting.

Avoid drinking alcohol. It lowers blood sugar and may increase your risk of lactic acidosis while taking metformin.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

This medication may cause lactic acidosis (a build-up of lactic acid in the body, which can be fatal). Lactic acidosis can start slowly and get worse over time. Get emergency medical help if you have even mild symptoms of lactic acidosis, such as:

  • muscle pain or weakness;
  • numb or cold feeling in your arms and legs;
  • trouble breathing;
  • feeling dizzy, light-headed, tired, or very weak;
  • stomach pain, nausea with vomiting; or
  • slow or uneven heart rate.

Call your doctor at once if you have any other serious side effect such as:

  • feeling short of breath, even with mild exertion;
  • swelling or rapid weight gain; or
  • fever, chills, body aches, flu symptoms.

Less serious side effects may include:

  • headache or muscle pain;
  • weakness; or
  • mild nausea, vomiting, diarrhea, gas, stomach pain.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Tell your doctor about all other medicines you use, especially:

  • furosemide (Lasix);
  • nifedipine (Adalat, Procardia);
  • cimetidine (Tagamet) or ranitidine (Zantac);
  • amiloride (Midamor) or triamterene (Dyrenium);
  • digoxin (Lanoxin);
  • morphine (MS Contin, Kadian, Oramorph);
  • procainamide (Procan, Pronestyl, Procanbid);
  • quinidine (Quin-G) or quinine (Qualaquin);
  • trimethoprim (Proloprim, Primsol, Bactrim, Cotrim, Septra); or
  • vancomycin (Vancocin, Lyphocin).

You may be more likely to have hyperglycemia (high blood sugar) if you take metformin with other drugs that can raise blood sugar, such as:

  • isoniazid;
  • diuretics (water pills);
  • steroids (prednisone and others);
  • heart or blood pressure medication (Cartia, Cardizem, Covera, Isoptin, Verelan, and others);
  • niacin (Advicor, Niaspan, Niacor, Simcor, Slo-Niacin, and others);
  • phenothiazines (Compazine and others);
  • thyroid medicine (Synthroid and others);
  • birth control pills and other hormones;
  • seizure medicines (Dilantin and others); and
  • diet pills or medicines to treat asthma, colds or allergies.

These lists are not complete and other drugs may interact with metformin. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Your pharmacist can provide more information about metformin.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2014 Cerner Multum, Inc. Version: 11.02. Revision date: 3/31/2012.




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