Invokamet

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Invokamet

Property Description
Active Ingredients Canagliflozin and Metformin hydrochloride
Form Film-coated oral tablet (Immediate-Release and Extended-Release)
Pharmacological Class SGLT2 Inhibitor/Biguanide Combination (Antidiabetic)
Common Use Managing high blood sugar in Type 2 diabetes
Origin Synthetic Drug

What Type of Medicine is Invokamet?

Invokamet is a prescription fixed-dose combination medicine used to manage blood sugar in adults with Type 2 diabetes. It is classified as an oral antidiabetic combination and was initially approved in 2014.

This medicine is a synthetic compound composed of two distinct active ingredients: canagliflozin and metformin hydrochloride. Canagliflozin belongs to the class of sodium-glucose co-transporter 2 (SGLT2) inhibitors, and metformin hydrochloride is a biguanide. This combination of two different classes is clinically recognized for providing therapeutic benefits compared to using either medicine alone.


What are the Available Forms of Invokamet?

Invokamet is supplied as a film-coated oral tablet and is taken by mouth, which is its specified route of administration. There are two primary forms available to patients: the Immediate-Release (IR) tablet and the specialized Extended-Release (XR) tablet, known as Invokamet XR.

The XR formulation is distinct in that it utilizes a specialized tablet design to release the medications slowly over an extended period. Both the IR and XR forms deliver the two active synthetic ingredients simultaneously, aiding in consistent daily management.


What is the General Purpose of Invokamet?

The general therapeutic purpose of Invokamet is to help lower and manage high blood glucose (sugar) levels in adults with Type 2 diabetes mellitus. This dual-action approach aims to achieve effective glucose control and helps patients manage their chronic condition. It is prescribed for use in addition to a recommended diet and exercise program.

What side effects are possible with Invokamet?

Possible side effects and safety information

Invokamet's official safety profile reflects the combined risks of its two active components, encompassing adverse reactions across multiple physiological systems and varying degrees of seriousness.

Frequency-Classified Adverse Reactions

Adverse effects are categorized by their observed frequency in regulatory documents. Very common reactions (1/10) include gastrointestinal disturbances such as diarrhea, nausea, and flatulence, primarily due to the metformin component, and female genital mycotic infections from the canagliflozin component. Common reactions (1% to 10%) include urinary tract infections, increased urination, volume depletion (e.g., thirst, hypotension), and bone fracture.

Serious Adverse Reactions

Regulatory labeling identifies several serious adverse reactions. These include a Boxed Warning regarding the risk of Lactic Acidosis (a rare but serious metabolic complication) and an increased risk of Lower Limb Amputation, particularly of the toes and mid-foot, associated with the canagliflozin component. Other serious risks documented are Diabetic Ketoacidosis (DKA), Acute Kidney Injury, and Necrotizing Fasciitis of the Perineum (Fournier's Gangrene).

Population-Specific Safety Considerations

Safety notes are provided for specific populations. The medicine is contraindicated in severe renal impairment (eGFR less than 30 mL/min/1.73 m^2) and its use is generally avoided in hepatic impairment due to the increased risk of Lactic Acidosis. Older adults may face a higher risk of adverse reactions related to volume depletion.

Exposure-Related Safety Patterns

Certain effects exhibit timing patterns: reactions related to Volume Depletion are most frequently observed in the initial three months of treatment, and the risk of bone fracture may increase as early as 12 weeks following initiation.

Overdose and Emergency Response

Overdosage of Invokamet is associated with a risk of two distinct, serious metabolic emergencies: Metformin-associated Lactic Acidosis and Diabetic Ketoacidosis (DKA).

Lactic acidosis is a rare but often fatal condition associated with accumulated metformin in the bloodstream. Symptoms of this serious event may be non-specific and subtle, including feeling cold in the hands or feet, unusual muscle pain, respiratory distress, abdominal pain, somnolence, and severe generalized weakness. Plasma metformin levels generally exceeding 5 mu g/mL are typically observed in these cases. Prompt discontinuation of the medication and the immediate institution of supportive measures in a hospital setting are required.

Ketoacidosis, including euglycemic DKA where blood sugar levels may be lower than expected (e.g., less than 250 mg/dL), has also been documented. Clinical signs of ketoacidosis include nausea, vomiting, abdominal pain, excessive thirst, confusion, unusual fatigue, or sleepiness. If severe metabolic acidosis is suspected, assessment for ketoacidosis should be performed immediately, regardless of the presenting blood glucose level.

When to Seek Immediate Medical Help

If any signs or symptoms of lactic acidosis or ketoacidosis occur, stop taking Invokamet immediately and seek emergency medical attention at a hospital. Treatment of a severe overdose may involve prompt hemodialysis to remove accumulated metformin and correct the underlying acidosis. For specific overdosage management recommendations, contact a Poison Help line or a medical toxicologist.

Therapeutic Uses of Invokamet

What Invokamet Treats: Main Uses and Benefits

Invokamet is commonly used across domains where additional symptomatic support is needed, relevant in contexts marked by increased discomfort related to blood sugar. Its therapeutic domains involve assisting in the management of blood sugar in adults and certain pediatric patients with Type 2 Diabetes Mellitus, supporting the management of cardiovascular risks in relevant adults, and assisting in the preservation of kidney function associated with diabetes.

The medication is generally applied in situations where symptoms related to systemic imbalance are present, and symptom clusters may become intense or disruptive. It is considered relevant for easing symptom clusters such as frequent urination and general fatigue associated with uncontrolled glucose. This combination therapy is also applied in scenarios where additional management of discomfort is required to offer additional symptomatic assistance. It supports the management of cardiovascular risks and contributes to easing the overall symptom load related to functional stress over time, which generally helps improve day-to-day comfort.


Quick Fact: Support for Systemic Imbalance

Invokamet is commonly used to help patients manage fluctuating blood sugar and chronic hyperglycemia, contributing to improved comfort during symptomatic periods.

Eligibility and Restrictions for Use

Eligibility for Invokamet Use

Invokamet is intended for use in adults and pediatric patients aged 10 years and older who have Type 2 Diabetes Mellitus (T2DM). Safety and effectiveness have not been established in children younger than 10 years of age, and the medicine is not recommended for use in patients with Type 1 diabetes.


Absolute Contraindications

The medicine is strictly contraindicated for several populations as documented in official labeling. Individuals must not use Invokamet if they have severe renal impairment (estimated glomerular filtration rate, or eGFR, below 30 mL/min/1.73 m^2) or any form of acute or chronic metabolic acidosis, including diabetic ketoacidosis (DKA). A history of a serious hypersensitivity reaction to any component of the medicine is also an absolute contraindication.


Restricted and Conditional Use

Specific restrictions apply to other groups. Initiation is not recommended if the eGFR is less than 45 mL/min/1.73 m^2. Use is not recommended when breastfeeding or during the second and third trimesters of pregnancy. The medicine must be temporarily discontinued before certain procedures, such as imaging with iodinated contrast materials or major surgery. Use is not recommended for patients with hepatic impairment, and older adults (age 65 and over) require cautious use with frequent renal function assessment.

What should I know about interactions with other medicines?

Invokamet Interactions with other medicines and products

Official regulatory information describes specific interaction patterns that can alter the components' drug levels or increase certain risks.


Pharmacokinetic Interactions

Interactions documented in labeling affect the drug exposure of the active components:

  • UGT Enzyme Inducers (e.g., Rifampin, Phenytoin): Co-administration with these agents causes a reduction in the plasma exposure ( AUC/ C max) of the canagliflozin component.
  • Cationic Drugs (e.g., Cimetidine, Ranolazine, Dolutegravir): These medicines may increase the accumulation of metformin by competing for renal tubular transporters (OCT2/MATE), thus reducing metformin clearance.
  • Digoxin: Canagliflozin may increase the plasma concentration of Digoxin, requiring clinical monitoring.

Pharmacodynamic and Risk-Based Interactions

These combinations are noted for increasing specific risks:

  • Insulin and Insulin Secretagogues: Combination increases the risk of hypoglycemia due to additive glucose-lowering effects.
  • Diuretics and Antihypertensives: Co-administration, particularly with loop diuretics, increases the risk of volume depletion and potential hypotension.
  • Carbonic Anhydrase Inhibitors: These drugs may increase the risk of metformin-associated lactic acidosis.

Mandatory Restrictions and Procedural Constraints

Specific substances and medical procedures require the medication to be temporarily withheld:

  • Iodinated Contrast Agents: Temporary discontinuation of Invokamet is required at the time of, or prior to, radiologic studies involving the intravascular administration of iodinated contrast, to manage the increased risk of acute renal function changes.
  • Surgical Procedures: The medicine must be temporarily withheld during any surgical procedures that necessitate restricted intake of food and fluids.
  • Excessive Alcohol Intake: Officially documented as a risk factor; patients are restricted from excessive alcohol consumption as it can potentiate the effect of metformin on lactate metabolism.

Mechanism of Action

The action of Invokamet is achieved through a concerted influence on the physiological processes governing glucose regulation across two primary, non-overlapping mechanistic domains: the kidney and the liver/peripheral tissues.


Domain 1: Inhibition of Renal Glucose Reabsorption

This mechanism involves Canagliflozin targeting the Sodium-Glucose Co-transporter 2 (SGLT2) protein in the kidney tubules. By acting as a reversible inhibitor, the drug blocks the process of re-uptake, allowing filtered glucose to remain in the urine instead of returning to the bloodstream. This inhibition initiates a physiological cascade that results in a direct increase in Urinary Glucose Excretion (UGE), an insulin-independent effect that influences the concentration of circulating plasma glucose.


Domain 2: Suppression of Hepatic Glucose Production

The Metformin component engages a complementary mechanism centered on the liver. It indirectly activates the key cellular energy sensor, Adenosine Monophosphate-Activated Protein Kinase (AMPK), following an initial inhibitory effect on the mitochondrial respiratory chain. Activation of AMPK subsequently suppresses the gene expression of enzymes essential for hepatic gluconeogenesis. This metabolic adjustment leads to a reduction in the liver's internal release of glucose into the circulation, while also enhancing peripheral tissues' ability to utilize glucose.


Synergistic Mechanism

The combination leverages the separate actions of both compounds: Canagliflozin contributes to glucose elimination from the body, and Metformin affects glucose balance by decreasing its production and enhancing its utilization. This dual-pathway approach contributes to a multi-organ influence on the physiological processes governing glucose regulation.

Dosage and Administration Information

How to Use Invokamet

Invokamet is a fixed-dose combination medicine administered orally and intended for the long-term management of Type 2 diabetes. The use of the medicine is guided by instructions that define the dosing, frequency, and specific administration context.

Administration Scope and Dosing

Attribute Instruction Summary
Route & Form Administered orally as either an Immediate-Release (IR) tablet or an Extended-Release (XR) tablet.
Frequency IR form is taken twice daily (BID); XR form is taken once daily (QD).
With Meals The medicine must be taken with meals to minimize gastrointestinal effects, with the XR form taken specifically with the morning meal.
Maximum Dose The maximum total daily dose of the Canagliflozin component is 300 mg, and Metformin is 2,000 mg.

Procedural and Population Requirements

Instructions require that therapy be individualized and initiated only after an assessment of renal function (eGFR). The medicine is indicated for use in patients aged 10 years and older.

Dose Modification: Treatment initiation is not recommended if the eGFR is below 45 mL/min/1.73 m^2. If the eGFR is 45 to < 60 mL/min/1.73 m^2, the maximum total daily dose of the Canagliflozin component must be limited to 100 mg.

Handling Constraint: Extended-Release tablets must be swallowed whole and must not be cut, crushed, or chewed. The medicine must also be withheld for at least 3 days prior to surgical procedures associated with prolonged fasting.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Invokamet


Research Evidence for Blood Sugar Management

The foundational evidence consists of short-term and medium-term Randomized Controlled Trials (RCTs) monitoring specific metabolic biomarkers, such as Glycated Hemoglobin (A1C levels), over periods typically up to 52 weeks. Researchers report patterns in A1C levels observed in adults with Type 2 diabetes compared to control groups. The use of the fixed-dose combination (FDC) tablet was supported by research demonstrating that it delivers the same amount of medication as taking the two active components separately (bioequivalence).


Evidence Landscape for Cardiovascular and Kidney Outcomes

Research has explored patterns observed with the canagliflozin component of Invokamet in large-scale, long-term Clinical Outcome Trials (CVOTs). These studies monitored Major Adverse Cardiovascular Events (MACE) in adults with established cardiovascular disease or high risk. Separately, dedicated Kidney Outcome Trials monitored renal outcomes, such as the progression of kidney disease, including changes in Estimated Glomerular Filtration Rate (eGFR) and the need for End-Stage Kidney Disease (ESKD) treatment. Findings inform the regulatory authorization for the combination product.


Evidence in Specific Patient Groups and Remaining Uncertainty

Studies monitored the patterns observed in specific populations, including pediatric patients aged 10 years and older. The key research limitation is that long-term data are not fully established using the fixed-dose combination itself. The large-scale studies exploring cardiovascular and renal outcomes are based on the single active component, canagliflozin, and not the Invokamet FDC tablet specifically. Comparative evidence against other dual therapies over extended periods is limited.

Key Studies & References MedlinePlus Drug Information: Canagliflozin and Metformin

Frequently Asked Questions (FAQ)

Common questions about Invokamet (FAQ)

Q: Does Invokamet cause weight changes?

Studies examining the canagliflozin component of the medicine observed that, when used along with diet and exercise, a greater difference in mean body weight reduction was seen compared to a placebo group. This pattern is noted in regulatory data based on clinical trial observations.


Q: Can Invokamet affect my kidney function?

Invokamet is indicated for improving blood sugar control, and the canagliflozin component is also used in certain adults with Type 2 diabetes and established cardiovascular disease or high risk to help reduce the risk of serious kidney outcomes. This includes helping to slow the progression to end-stage kidney disease, as described in official product information.


Q: Can Invokamet affect results of certain medical lab tests?

Yes, regulatory documents state that the medicine can lead to positive urine glucose tests due to its mechanism of action. Official information also notes that it may interfere with certain blood tests used to measure 1,5-anhydroglucitol (1,5-AG) levels, making those results unreliable for assessing blood sugar control.


Q: Is Invokamet considered a 'first-line' medication for Type 2 diabetes?

Official documents indicate that Invokamet is used as an adjunct to diet and exercise to improve blood sugar control. The official prescribing information includes guidance for use in patients who have not previously been treated with either of the individual components.


Q: Is Invokamet safe for use in older adults (seniors)?

Official documents state that older adults (age 65 or greater) may have an increased risk of certain adverse reactions, such as volume depletion or hypotension (low blood pressure). Due to these risks, regulatory guidelines specify that frequent assessment of kidney function is necessary in this population.


Q: How does Invokamet differ from other dual-therapy diabetes medications?

The medicine is officially described as the first fixed-dose combination containing a sodium-glucose co-transporter 2 (SGLT2) inhibitor and a biguanide (metformin), providing two distinct and complementary mechanisms of action to help manage blood sugar.


Q: Are there official statements regarding Invokamet and its effect on the risk of amputation?

The official labeling includes a Boxed Warning that describes an increased risk of lower limb amputations associated with the canagliflozin component. Regulatory information specifies that amputations of the toe and midfoot were the most frequently observed.


Q: Does Invokamet affect cholesterol levels?

According to the official labeling for the canagliflozin component, increases in LDL-C (a type of cholesterol) were observed in some clinical studies.


Q: What are the general expectations for a patient's A1C levels while on Invokamet?

Clinical studies of the components have examined patterns that show a greater change in Glycated Hemoglobin (A1C) levels compared to placebo. This is observed when the medicine is used along with diet and exercise.


Q: Does Invokamet interact with common over-the-counter pain relievers?

Regulatory documents note the need for careful consideration when Invokamet is co-administered with drugs that may impair renal function. This class of drugs can include certain common pain relievers.


Q: Is it necessary to drink extra water while taking Invokamet?

Official documents state that patients who have volume depletion (related to loss of body water and salt) must have this condition corrected before starting the medicine. Regulatory documents do not include a specific, universal instruction for proactively drinking 'extra' water.


Q: Can Invokamet interact with herbal supplements?

The official patient information includes a statement about the importance of discussing herbs, vitamins, or supplements with a healthcare provider before use. This is because certain supplements, such as alpha-lipoic acid, may have additive blood sugar-lowering effects.


Q: Is a metallic taste in the mouth sometimes linked to Invokamet?

Yes, the official product information for the medicine lists a metallic taste in the mouth as a possible adverse reaction.


Q: Does Invokamet affect blood pressure?

Clinical data for the canagliflozin component showed that treatment was associated with a reduction in both systolic and diastolic blood pressure compared to placebo.


Q: Can Invokamet cause muscle pain or weakness?

Official documents list weakness as a common adverse reaction. Unusual muscle pain is also listed as a symptom of the serious risk of lactic acidosis, a rare but serious metabolic complication associated with the metformin component.


Q: Do official documents mention any connection between Invokamet and pancreatitis?

The official product information mentions the potential for pancreatitis (inflammation of the pancreas). These signs can include severe stomach pain.


Q: Does Invokamet cause dehydration?

The medicine is noted for causing volume depletion, which is described in patient information as the loss of body water and salt (dehydration). This can lead to symptoms like thirst and dizziness.


Q: What kind of blood monitoring is commonly required while taking Invokamet?

Official documents describe the need for assessing kidney function (estimated glomerular filtration rate, or eGFR) before treatment is started and at least annually thereafter. Monitoring for ketones is also noted for patients considered to be at risk of diabetic ketoacidosis.


Q: Is Invokamet known to cause dizziness or fatigue?

Yes, weakness is listed as a common adverse reaction in regulatory documents. Dizziness and unusual tiredness are also listed as symptoms that may occur, particularly if low blood sugar (hypoglycemia) or volume depletion develops.

How should Invokamet be stored and disposed of?

How to Store and Dispose of Invokamet

The storage and disposal of Invokamet tablets must strictly follow the requirements documented in official regulatory labeling.

Required Storage Conditions

Invokamet must be stored at Controlled Room Temperature, specifically between 68 F and 77 F (20 C and 25 C). The tablets must be kept in the original container to provide necessary protection from moisture and maintain product stability. If tablets are removed from the original bottle, such as for a pill organizer, they should be used within 30 days. The medicine must always be stored out of the reach of children.

Disposal Instructions

Expired or unused Invokamet should be discarded via a drug take-back program. If a program is unavailable, the product may be mixed with an undesirable substance (like dirt or coffee grounds), sealed in a plastic bag, and placed in household trash. Invokamet is not listed as a medicine that should be flushed down the sink or toilet.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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