Additional information
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$179.00
Metabolic support, backed by a trusted prescription. Metformin ER may help support healthy blood sugar and insulin response for better metabolic health.

Supports glucose regulation: Helps reduce hepatic glucose production and improve glycemic control.

Improves insulin sensitivity: Supports the body’s ability to respond appropriately to insulin.

Supports metabolic health: Frequently incorporated into clinician-directed metabolic-health strategies.

May support weight management: Metformin may be associated with modest weight reduction in some individuals, although it is not FDA-approved specifically as a weight-loss medication.
Is Metformin ER different from regular metformin?
Yes. Metformin ER is an extended-release formulation, meaning the medication is released more gradually than immediate-release metformin. Extended-release formulations are commonly taken less frequently and may improve gastrointestinal tolerability for some patients.
What does Metformin do for insulin resistance?
Metformin reduces glucose production by the liver and improves the body’s sensitivity to insulin. This can help the body use glucose more effectively and improve overall glucose regulation.
Is Metformin a weight-loss medication?
No. Metformin is not FDA-approved specifically for weight loss. However, modest weight reduction has been observed in some patients, and clinicians may use metformin off-label in certain weight-related or metabolic-health situations.
Is metformin a GLP-1 medication?
No. Metformin and GLP-1 receptor agonists are different medication classes. Metformin is a biguanide that primarily reduces hepatic glucose production and improves insulin sensitivity. GLP-1 receptor agonists act on the GLP-1 receptor and have different effects on appetite, glucose regulation, insulin secretion, and gastric emptying. This distinction could actually be useful SEO-wise because people searching Celia’s weight-management catalog may be comparing the two.
Can metformin be prescribed online?
Metformin may be prescribed through telehealth when a licensed clinician determines that treatment is medically appropriate and applicable prescribing requirements are satisfied.
How long does metformin take to work?
Changes in blood glucose may occur relatively early in treatment, while longer-term markers such as HbA1c are typically evaluated over a longer period. Individual response varies, so treatment effectiveness should be evaluated by the prescribing clinician.
Can you take metformin if you don't have diabetes?
Metformin has several off-label clinical applications. Whether it is appropriate for someone without type 2 diabetes depends on their medical history, metabolic health, laboratory findings, and clinician assessment.
Is metformin used for longevity?
Metformin is being researched for its potential relationship to aging biology and healthspan. It is not FDA-approved to prevent aging or extend lifespan, and longevity applications should be clearly described as investigational.
Metformin is generally well established clinically, but it is not appropriate for every patient. Extended-release formulations may be better tolerated gastrointestinally by some patients. Important Precautions Kidney function should be evaluated when determining whether metformin is appropriate. The existing Celia product catalog specifically identifies severe renal impairment as a contraindication and recommends caution in patients with gastrointestinal sensitivity. Additional considerations may include liver disease, excessive alcohol intake, dehydration, acute illness, certain cardiovascular conditions, and other circumstances that can increase the risk of lactic acidosis, a rare but serious adverse reaction. Long-term metformin use may also be associated with decreased vitamin B12 levels in some patients, which may warrant periodic evaluation when clinically appropriate. Your prescribing clinician should review your medical history, medications, and relevant laboratory results before treatment. Common Side Effects The most commonly reported adverse effects are gastrointestinal and may include:
Store Metformin ER tablets at controlled room temperature, protected from excessive moisture and heat. Keep the medication in its original container with the lid securely closed and store it in a dry location away from direct sunlight. Keep out of reach of children and pets. Always follow the pharmacy label for product-specific storage instructions.
Metformin ER (extended release) is a prescription medication used to improve blood glucose control in adults with type 2 diabetes. It is also commonly considered by clinicians in broader metabolic-health protocols based on an individual’s medical history, laboratory findings, and treatment goals. The extended-release formulation is designed to release metformin gradually, allowing for once-daily administration in many patients and potentially improving gastrointestinal tolerability compared with immediate-release formulations. Within a physician-guided metabolic program, metformin may be considered when addressing glucose regulation, insulin sensitivity, and other metabolic concerns.
All dosing should follow the instructions provided by the prescribing clinician.

Metformin primarily helps reduce the amount of glucose produced by the liver while improving the body’s response to insulin.
Its metabolic effects include:

Metformin decreases gluconeogenesis, helping reduce excess glucose released by the liver.

It can improve the body’s response to insulin and promote more effective peripheral glucose utilization.

Together, these actions help improve fasting and overall blood glucose control.

Metformin also influences cellular pathways associated with energy regulation, including AMP-activated protein kinase (AMPK). These pathways are one reason metformin continues to be studied beyond its established role in diabetes management.
Unlike medications that directly stimulate pancreatic insulin secretion, metformin generally carries a relatively low risk of hypoglycemia when used alone.
Metformin is FDA-approved, alongside diet and exercise, to improve glycemic control in adults and certain pediatric patients with type 2 diabetes mellitus. Depending on the individual, clinicians may also prescribe metformin off-label when addressing certain metabolic concerns. Potential areas of clinician-directed use include:
Metformin has also received significant research interest in the field of healthy aging and longevity. However, metformin is not FDA-approved as a longevity or anti-aging medication.
All dosing should follow the instructions provided by the prescribing clinician.
Metformin is a biguanide that’s been the frontline treatment for type 2 diabetes since the 1950s. It works primarily in the liver, activating an enzyme called AMPK that suppresses excess glucose production, with a smaller effect improving how muscle tissue takes up glucose.
Unlike some diabetes medications, it doesn’t trigger insulin release, so it carries minimal risk of hypoglycemia on its own. Its effect on AMPK and cellular energy pathways has also made it a focus of longevity research, including the ongoing TAME trial.


Supports glucose regulation: Helps reduce hepatic glucose production and improve glycemic control.

Improves insulin sensitivity: Supports the body’s ability to respond appropriately to insulin.

Supports metabolic health: Frequently incorporated into clinician-directed metabolic-health strategies.

May support weight management: Metformin may be associated with modest weight reduction in some individuals, although it is not FDA-approved specifically as a weight-loss medication.
Prescription products require a medical consultation with a licensed provider, who will determine whether treatment is clinically appropriate. Please refer to each product page for important safety information. Any benefits described on Celia-rx.com are based on third-party research and published studies.
These statements have not been evaluated by the Food and Drug Administration. Products and services offered by CeliaRx are not intended to diagnose, treat, cure, or prevent any disease.
This medication is prescribed only when deemed medically appropriate following a clinician’s review. It is not prescribed for performance enhancement purposes. All prescriptions require consultation with a licensed provider (via secure telehealth). If the provider determines the medication is not appropriate for you, you will receive a full refund.
*All products shipped from our pharmacy partner will look different upon arrival. CeliaRx products are only labeled to see brand and product information.
* All products are compounded by Partell Pharmacy.
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