MetforminPrices, Coupons & Savings

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*Based on the difference between the U&C price submitted and the price the patient paid, as of April 2023.

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  1. Medication
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  2. Metformin
    Generic for Glucophage
    30 tablets $3.9 USD
    Save $16.20
  3. Metformin
    Generic for Glucophage
    30 tablets $3.9 USD
    Save $16.20
  4. Metformin
    Generic for Glucophage
    30 tablets $3.6 USD
    Save $16.50
  5. Metformin Extended Release (ER)
    Generic for Fortamet
    30 extended release tablets $46.2 USD
    Save $518.40
  6. Metformin Extended Release (ER)
    Generic for Glucophage XR
    30 extended release tablets $3.9 USD
    Save $5.10
  7. Metformin Extended Release (ER)
    Generic for Glucophage XR
    30 extended release tablets $4.2 USD
    Save $4.80
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Save up to 90% of your branded or generic medications using the Now Patient Rx Advantage Card

Do you need a prescription for metformin?

Yes, metformin is only available with a valid physician Rx.

How much is metformin without Insurance in the US?

Our website gives two competitive savings options to US customers who wish to purchase metformin, as either a brand or generic, if available. The first is access to medications through our mail-order online pharmacy. The second is by using the Now Patient Rx Advantage Card, which can be used in over 65,000 pharmacies nationwide, across America. If you are insured, then in most cases, the cash price will be significantly cheaper than the copay.

What will my out-of-pocket cost be for metformin in the US?

There are no out-of-pocket (OOP) costs because we are currently only offering a cash-based option to purchase medications.

Is Now Patient a metformin savings card?

Yes. Save up to 90% on your metformin with the FREE Now Patient Rx Advantage card*.
*Based on the difference between the U&C submitted by the pharmacy and the price the patients pay.

Can you handle Rx transfers for home delivery in the US?

Yes. If you use the mail-order online pharmacy option, then we can handle requests by you to have your prescription transferred to our pharmacy for home delivery. We can even help you manage your refills by giving you timely reminders, so you do not run out of your medication.

Is Now Patient a metformin coupon provider in the US?

No. Now Patient does not provide metformin coupons or FREE metformin samples.

Do you accept commercial, Medicare or Medicaid coverage for metformin in the US?

No. Currently, we only offer cash-based options for purchase, therefore we do not require your insurance benefit details. In the future, our plan is to be able to handle commercial insurance, Medicare and Medicaid including cases where you have multiple health plans that provide benefit coverage (e.g. Medicaid and Commercial). We also anticipate being able to handle more complex scenarios such as using primary insurance combined with a manufacturer copay assistance program.

Does Now Patient work with Medicare?

Our cash-based prices for medications are typically cheaper than Medicare copays. We do not bill Medicare Part D (standalone drug coverage) or Medicare Advantage (combined health and drug coverage). When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

Does Now Patient work with Commercial Insurance?

Our cash-based prices for medications are typically cheaper than commercial plan copays. We do not bill your commercial plan. When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.

What should you do if you use too much metformin?


Call your doctor right away or seek immediate medical attention if your symptoms do not improve or they become worse after using metformin. You can also call 800-222-1222 to reach the American Association of Poison Control Centers or use its online resource if you think you’ve used too much metformin. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.


If you think it is an emergency, call 999 or find your nearest A&E
If you need help now, but it’s not an emergency go to 111.nhs.uk or call 111. Alternatively you can speak to one of our pharmacists or use the Now Patient app to make an appointment with your GP.

What should I do if I miss my dose?

There are occasions when people forget to take their medication at correct prescribed times. This may not only have an effect on potentially making the medication less effective but it may also inadvertently lead to taking doses too close together, thereby increasing the risks of side effects.

Click here to find out what to do if you forgot to take your medication

What is metformin?

Metformin is a medication used to treat type 2 diabetes mellitus. It belongs to a class of drugs called biguanides and works by reducing glucose production in the liver and improving insulin sensitivity in the body.

FDA approval of metformin

Metformin is approved by the U.S. Food and Drug Administration (FDA) for the treatment of type 2 diabetes.

Active Ingredient of metformin

The active ingredient of metformin is metformin hydrochloride.

US brand name of metformin and manufacturer

Metformin is available under various brand names in the United States, including Glucophage, Glumetza, Fortamet, and Riomet. These brand names are manufactured by different pharmaceutical companies.

UK brand name of metformin and manufacturer

In the United Kingdom, metformin is available under different brand names, including Glucophage, and Metabet. These brand names are also manufactured by various pharmaceutical companies.

Generic availability of metformin

Metformin is available as a generic medication, which means it can be sold under its chemical name, metformin, without a specific brand name.

Prescription requirement for metformin

Metformin is a prescription medication in the United States and the United Kingdom. It is important to consult a healthcare provider who can evaluate your condition and determine if metformin is appropriate for you.

Availability of metformin in the UK with NHS prescription

Metformin is available with a National Health Service (NHS) prescription in the United Kingdom. It can be obtained from pharmacies with a valid prescription from a healthcare professional.

Conditions treated by metformin

Metformin is primarily used to manage high blood sugar levels (hyperglycemia) in people with type 2 diabetes. Metformin is not recommended in patients who have insulin-dependent or type 1 diabetes. It is prescribed alongside a healthy diet and exercise regimen to help control blood glucose levels.

How does metformin work?

Metformin is an antidiabetic that works by decreasing the amount of glucose produced by the liver and enhancing the body’s response to insulin. It helps to lower blood sugar levels and improve insulin sensitivity, leading to better control of diabetes. Metformin may be used alone or in combination with sulfonylureas.

Forms of metformin available

Metformin is available in various forms, including immediate-release tablets, extended-release tablets, and oral solutions. The specific form and strength of metformin prescribed may depend on individual factors and treatment goals.

Dosage of metformin

The dosage of metformin may vary depending on various factors, including age, kidney function, and response to treatment. It is important to follow the dosage instructions and medical advice provided by the healthcare provider and not exceed the prescribed dose.

Directions for metformin use

Metformin is typically taken orally with meals, unless otherwise directed by the healthcare provider. It is important to take metformin exactly as prescribed and follow any specific instructions provided.

Contraindications and warnings of metformin

  • Tell your doctor if you have kidney disease (your kidney function may need checking before you start treatment), heart disease, congestive heart failure, liver disease, blood problems (such as anemia, or vitamin B12 deficiency), diabetic ketoacidosis or if you use insulin, or other oral diabetes medications
  • Alcohol can increase your risk of lactic acidosis and developing low blood sugar when taking metformin

Side effects of metformin

Like any medication, metformin may cause side effects. Common side effects may include gastrointestinal symptoms such as nausea, vomiting, diarrhea, stomach pain, and weight loss. These side effects are usually mild and transient. Serious side effects are rare but can include lactic acidosis, a potentially life-threatening condition, hypoglycemia (low blood sugar), and allergic reactions. It is important to seek medical attention if you experience any severe or persistent adverse effects.

Interactions with other drugs

Metformin may have drug interactions with certain medications, including those used to treat high blood pressure, heart conditions, and some antibiotics. Certain drug interactions may increase the risk of lactic acidosis. These include carbonic anhydrase inhibitors, cimetidine, glycopyrrolate, lamotrigine, ranolazine, and topiramate. It is important to inform your healthcare provider about all medications, supplements, and herbal products you are taking to avoid potential interactions.

Is metformin safe to take if I am pregnant or planning to become pregnant?

Metformin may be prescribed to women with type 2 diabetes during pregnancy under the supervision of a
healthcare provider. It is important to discuss the potential risks and benefits of metformin use during pregnancy with your healthcare provider.

Is metformin safe to take if I am breastfeeding?

Metformin is considered compatible with breastfeeding. It is generally safe to take metformin while breastfeeding, but it is advisable to consult with a healthcare provider for individualized recommendations.



Now Patient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information in this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

Stefano Mirabello Medical Reviewer
Pharmacist / B.Pharm
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