Metformin Hcl Er (Mod)
metFORMIN HCl ER (MOD) 1000MG
What is Metformin Hcl Er (Mod)?
Metformin HCl ER (mod) is an extended-release formulation of metformin hydrochloride, primarily used to manage type 2 diabetes mellitus. It works by improving insulin sensitivity and reducing hepatic glucose production, thereby helping control blood sugar levels. This modified-release version allows for once-daily dosing to maintain steady medication levels in the body, enhancing patient compliance and minimizing gastrointestinal side effects.Side Effects
- Confusion, fast heartbeat, increased hunger, shakiness
- Trouble breathing, slow heartbeat, lightheadedness, dizziness
- Stomach pain, nausea, vomiting, muscle pain or cramping
Warnings
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart or blood vessel disease, heart failure, blood circulation problems, anemia, metabolic acidosis, an adrenal gland or pituitary gland disorder, vitamin B12 deficiency, or had a heart attack. Tell your doctor if you drink alcohol.
- Too much of this medicine can cause a rare, but serious condition called lactic acidosis.
- Part of the extended-release tablet may pass in your stool. This is normal.
- Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine before you have surgery, an x-ray, CT scan, or other medical test.
Prescription savings · · · ·
What is Metformin Hcl Er (Mod) ?
Metformin HCl ER (mod) is an extended-release formulation of metformin hydrochloride, primarily used to manage type 2 diabetes mellitus. It works by improving insulin sensitivity and reducing hepatic glucose production, thereby helping control blood sugar levels. This modified-release version allows for once-daily dosing to maintain steady medication levels in the body, enhancing patient compliance and minimizing gastrointestinal side effects.- Confusion, fast heartbeat, increased hunger, shakiness
- Trouble breathing, slow heartbeat, lightheadedness, dizziness
- Stomach pain, nausea, vomiting, muscle pain or cramping
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Fever or chills
- Unusual tiredness or weakness
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart or blood vessel disease, heart failure, blood circulation problems, anemia, metabolic acidosis, an adrenal gland or pituitary gland disorder, vitamin B12 deficiency, or had a heart attack. Tell your doctor if you drink alcohol.
- Too much of this medicine can cause a rare, but serious condition called lactic acidosis.
- Part of the extended-release tablet may pass in your stool. This is normal.
- Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine before you have surgery, an x-ray, CT scan, or other medical test.
- This medicine may cause some premenopausal women who do not have regular monthly periods to ovulate. This can increase the chance of pregnancy. If you are a woman of childbearing potential, discuss birth control options with your doctor.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Metformin Hcl Er (Mod) Coupons & Prices
metFORMIN HCl ER (MOD) 1000MG
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Looking for a metformin HCl ER coupon? Metformin hydrochloride extended-release is a widely prescribed generic biguanide used with diet and exercise to control high blood sugar in adults and children with type 2 diabetes. Because it is available as a generic, it is already one of the lower-cost diabetes medicines, but the cash price can still vary a lot from one pharmacy to the next. Enter your ZIP above to see today's price and compare across more than 60,000 pharmacies with a free Rx.com discount coupon.
What is metformin HCl ER and how does it work?
Metformin hydrochloride extended-release (the generic form of brand-name products such as Glucophage XR, Fortamet, and Glumetza) is a biguanide antihyperglycemic taken by mouth. It is used together with diet and exercise, and sometimes with other medicines or insulin, to control high blood sugar in adults and children with type 2 diabetes mellitus. It works in three main ways: it lowers the amount of glucose your liver makes, reduces the amount of glucose your intestines absorb from food, and improves how well your body responds to its own insulin.
The extended-release (ER) form is designed to release the medicine slowly over the day, so it is usually taken once daily. Metformin is not used for type 1 diabetes or for diabetic ketoacidosis. It is your prescriber's decision whether metformin is right for you.
How much does generic metformin HCl ER cost without insurance?
Metformin is a generic, so it is already among the more affordable diabetes medicines, and you do not need insurance to use an Rx.com coupon. That said, the cash price is not the same everywhere; two pharmacies on the same street can charge noticeably different amounts for the exact same prescription. That is why comparing matters. Rx.com checks prices across more than 60,000 pharmacies so you can see who is lowest near you.
To see the current price, enter your ZIP above. Your live price will depend on your location, the pharmacy, the strength, and the quantity you are filling. Show the coupon to your pharmacist to use it. There is no manufacturer savings card for generic metformin ER.
Metformin ER alternatives and related medicines
Metformin comes in more than one form, and there are other diabetes medicines your prescriber may consider. Comparing options and prices can help you and your provider decide what fits best.
- Metformin (immediate-release) — the standard-release version, usually taken two or three times a day.
- Brand extended-release equivalents: Glucophage XR, Fortamet, and Glumetza.
- Glipizide — a sulfonylurea that lowers blood sugar by a different mechanism.
- Januvia (sitagliptin) — a DPP-4 inhibitor sometimes used alongside metformin.
Do not switch or stop any diabetes medicine on your own. Talk with your prescriber or pharmacist about which option is appropriate for you.
Safety, side effects, and the lactic acidosis warning
Metformin ER carries a boxed warning for metformin-associated lactic acidosis, a rare but serious and potentially life-threatening buildup of lactic acid in the blood. Warning signs can include feeling generally unwell, muscle aches, trouble breathing, unusual sleepiness, and stomach pain. The risk is higher with reduced kidney function, being over 65, imaging tests that use iodinated contrast dye, surgery, low-oxygen conditions, heavy alcohol use, and liver problems. If lactic acidosis is suspected, the medicine is stopped and urgent medical treatment is needed. Metformin should not be used if you have significant kidney impairment (eGFR below 30) or metabolic acidosis, and your prescriber will check your kidney function before you start and periodically after.
The most common side effects are stomach-related: diarrhea, nausea, and upset stomach. Taking the tablet with meals can help. Swallow the ER tablet whole; do not crush, cut, or chew it. Long-term use may lower vitamin B12 levels, so your provider may check this over time. This information is not medical advice. Talk with your doctor or pharmacist about your full health history and any other medicines you take.
This Metformin Hcl Er (Mod) information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Metformin Hcl Er (Mod) on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.