farxiga
Farxiga (Dapagliflozin) is a sodium-glucose cotransporter 2 inhibitor used to treat Type 2 Diabetes Mellitus.
Dapagliflozin · by Astrazeneca Ab
Key facts
- Active ingredient
- Dapagliflozin
- Drug class
- Sodium-Glucose Cotransporter 2 Inhibitor
- Form
- Tablet
- Strength
- Dapagliflozin 10MG · Dapagliflozin 5MG
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- May treat
- type 2 diabetes mellitus
- Manufacturer
- Astrazeneca Ab
- What the pharmacy pays
- ~$6.15 for 30 — not your price
- FDA application
- NDA202293
What is Farxiga?
From the FDA label:Dapagliflozin, an inhibitor of SGLT2, is described chemically as D-glucitol, 1,5-anhydro-1- C -[4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-, (1 S )-, compounded with (2 S )-1,2-propanediol, hydrate (1:1:1). The empirical formula is C 21 H 25 ClO 6 •C 3 H 8 O 2 •H 2 O and the molecular weight is 502.98. The structural formula is: FARXIGA is available as a film-coated tablet for oral administration containing the equivalent of 5 mg dapagliflozin as dapagliflozin propanediol or the equivalent of 10 mg dapagliflozin as dapagliflozin propanediol, and the following inactive ingredients: anhydrous lactose, crospovidone, magnesium stearate, microcrystalline cellulose, and silicon dioxide. In addition, the film coating contains the following inactive ingredients: polyethylene glycol, polyvinyl alcohol, talc, titanium dioxide, and yellow iron oxide. Dapagliflozin Chemical Structure
How to use
Assess renal function prior to initiation and then as clinically indicated. Assess volume status and correct volume depletion before initiating. (2.1) • To improve glycemic control, the recommended starting dosage is 5 mg orally once daily. Dosage can be increased to 10 mg orally once daily for additional glycemic control. (2.2) • For all other indications, the recommended dosage is 10 mg orally once daily. ( 2.3 ) • See full prescribing information for dosage recommendations in patients with renal impairment. ( 2.2 , 2.3 ) • Withhold FARXIGA for at least 3 days, if possible, prior to surgery or procedures associated with prolonged fasting. ( 2.4 ) 2.1 Testing Prior to Initiation of FARXIGA • Assess renal function prior to initiation of FARXIGA and then as clinically indicated [see Warnings and Precautions (5.2) ]. • Assess volume status. In patients with volume depletion, correct this condition before initiating FARXIGA [see Warnings and Precautions (5.2) and Use in Specific Populations (8.5 , 8.6) ] . 2.2 Recommended Dosage for Glycemic Control in Adults and Pediatric Patients Aged 10 Years and Older with Type 2 Diabetes Mellitus In adults and pediatric patients aged 10 years and older with type 2 diabetes mellitus, the recommended starting dosage of FARXIGA is 5 mg orally once daily to improve glycemic control. For additional glycemic control, the dosage can be increased to…
Side effects
The following important adverse reactions are described below and elsewhere in the labeling: • Diabetic Ketoacidosis in Patients with Type 1 Diabetes Mellitus and Other Ketoacidosis [see Warnings and Precautions (5.1) ] • Volume Depletion [see Warnings and Precautions (5.2) ] • Genitourinary Infections, including Urosepsis, Pyelonephritis, Necrotizing Fasciitis of the Perineum (Fournier’s Gangrene), and Genital Mycotic Infections [see Warnings and Precautions (5.3) ] • Hypoglycemia with Concomitant Use with Insulin and Insulin Secretagogues [see Warnings and Precautions (5.4) ] • Most common adverse reactions (5% or greater incidence) were female genital mycotic infections, nasopharyngitis, and urinary tract infections. ( 6.1) To report SUSPECTED ADVERSE REACTIONS, contact AstraZeneca at 1-800-236-9933 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. FARXIGA has been evaluated in clinical trials in adult and pediatric patients aged 10 years and older with type 2 diabetes mellitus, in adult patients with heart failure, and in adult patients with chronic kidney disease. The…
Warnings
Important safety information
Diabetic Ketoacidosis in Patients with Type 1 Diabetes Mellitus and Other Ketoacidosis: Consider ketone monitoring in patients with type 1 diabetes mellitus and consider ketone monitoring in others at risk for ketoacidosis, as indicated. Assess for ketoacidosis regardless of presenting blood glucose levels and discontinue FARXIGA if ketoacidosis is suspected. Monitor patients for resolution of ketoacidosis before restarting. (5.1) • Volume depletion: Before initiating FARXIGA, assess volume status and renal function in the elderly, patients with renal impairment or low systolic blood pressure, and in patients on diuretics. Monitor for signs and symptoms during therapy. ( 5.2 ) • Genitourinary Infections, including Urosepsis, Pyelonephritis, Necrotizing Fasciitis of the Perineum (Fournier’s Gangrene), and Genital Mycotic Infections: Monitor patients for signs and symptoms of genitourinary infections and treat promptly, if indicated. Immediately evaluate patients presenting with pain or tenderness, erythema, or swelling in the genital or perineal area, along with fever or malaise, for necrotizing fasciitis and if suspected, discontinue FARXIGA, and promptly institute appropriate medical and/or surgical intervention (5.3) • Hypoglycemia: Consider a lower dose of insulin or the insulin secretagogue to reduce the risk of hypoglycemia when used in combination with FARXIGA. (5.4) 5.1 Diabetic Ketoacidosis in Patients with Type 1 Diabetes Mellitus and Other Ketoacidosis In patients with type 1 diabetes mellitus, FARXIGA significantly increases the risk of diabetic ketoacidosis, a life-threatening event, beyond the background rate. In placebo-controlled trials of patients with type 1 diabetes mellitus, the risk of ketoacidosis was markedly increased in patients who received sodium-glucose cotransporter 2 (SGLT2) inhibitors compared to patients who received placebo. FARXIGA is not indicated for glycemic control in patients with type 1 diabetes mellitus. Type 2 diabetes mellitus and pancreatic disorders (e.g., history of pancreatitis or pancreatic surgery) are also risk factors for ketoacidosis. There have been postmarketing reports of fatal events of ketoacidosis in patients with type 2 diabetes mellitus using SGLT2 inhibitors, including FARXIGA. Precipitating conditions for diabetic ketoacidosis or other ketoacidosis include under-insulinization due to insulin dose reduction or missed insulin doses, acute febrile illness, reduced caloric intake, ketogenic diet, surgery, volume depletion, and alcohol abuse. Signs and symptoms are consistent with dehydration and severe metabolic acidosis and include nausea, vomiting, abdominal pain, generalized malaise, and shortness of breath. Blood glucose levels at presentation may be below those typically expected for diabetic ketoacidosis (e.g., less than 250 mg/dL). Ketoacidosis and glucosuria may persist longer than typically expected. Urinary glucose excretion persists for 3 days after discontinuing FARXIGA [see Clinical Pharmacology (12.2) ] ; however, there have been postmarketing reports of ketoacidosis and/or glucosuria lasting greater than 6 days and some up to 2 weeks after discontinuation of SGLT2 inhibitors. Consider ketone monitoring in patients with type 1 diabetes mellitus and consider ketone monitoring in others at risk for ketoacidosis if indicated by the clinical situation. Assess for ketoacidosis regardless of presenting blood glucose levels in patients who present with signs and symptoms consistent with severe metabolic acidosis. If ketoacidosis is suspected, discontinue FARXIGA, promptly evaluate, and treat ketoacidosis, if confirmed. Monitor patients for resolution of ketoacidosis before restarting FARXIGA. Withhold FARXIGA, if possible, in temporary clinical situations that could predispose patients to ketoacidosis. Resume FARXIGA when the patient is clinically stable and has resumed oral intake [see Dosage and Administration (2.4) ] . Educate all patients on the signs and symptoms of ketoacidosis and instruct patients to discontinue FARXIGA and seek medical attention immediately if signs and symptoms occur. 5.2 Volume Depletion FARXIGA can cause intravascular volume depletion which may sometimes manifest as symptomatic hypotension or acute transient changes in creatinine. There have been post-marketing reports of acute kidney injury, some requiring hospitalization and dialysis, in patients with type 2 diabetes mellitus receiving SGLT2 inhibitors, including FARXIGA. Patients with impaired renal function (eGFR less than 60 mL/min/1.73 m 2 ), elderly patients, or patients on loop diuretics may be at increased risk for volume depletion or hypotension. Before initiating FARXIGA in patients with one or more of these characteristics, assess volume status and renal function. Monitor for signs and symptoms of hypotension, and renal function after initiating therapy. 5.3 Genitourinary Infections, including Urosepsis, Pyelonephritis, Necrotizing Fasciitis of the Perineum (Fournier’s Gangrene), and Genital Mycotic Infections FARXIGA increases urinary glucose excretion [see Clinical Pharmacology (12.2) ] and increases the risk of genitourinary infections including urinary tract infections and genital mycotic infections in both male and female patients [see Adverse Reactions (6.1) ] . Serious genitourinary infections, including urosepsis, pyelonephritis, and necrotizing fasciitis of the perineum (Fournier’s gangrene, a rare life-threatening infection requiring urgent surgical intervention), have occurred in patients receiving SGLT2 inhibitors, including FARXIGA [see Adverse Reactions (6.2) ] . Cases have required hospitalization. In patients with Fournier’s gangrene, serious outcomes have included multiple surgeries and death. Patients with a history of genitourinary infections are more likely to develop genitourinary infections when using FARXIGA. Monitor patients for signs and symptoms of genitourinary infections and treat promptly, if indicated. Immediately evaluate patients presenting with pain or tenderness, erythema, or swelling in the genital or perineal area, along with fever or malaise, for necrotizing fasciitis. If suspected, discontinue FARXIGA and promptly institute appropriate medical and/or surgical intervention. 5.4 Hypoglycemia with Concomitant Use with Insulin and Insulin Secretagogues Insulin and insulin secretagogues (e.g., sulfonylureas) are known to cause hypoglycemia. FARXIGA may increase the risk of hypoglycemia when combined with insulin or an insulin secretagogue [see Adverse Reactions (6.1) ] . Therefore, a lower dose of insulin or insulin secretagogue may be required to minimize the risk of hypoglycemia when these agents are used in combination with FARXIGA [see Drug Interactions (7) ] .
Who should not take Farxiga
FARXIGA is contraindicated in patients with a history of a serious hypersensitivity reaction to dapagliflozin or any of the excipients in FARXIGA. Serious hypersensitivity reactions, including anaphylaxis and angioedema have been reported with FARXIGA [see Adverse Reactions (6.1) ] . • History of serious hypersensitivity reaction to dapagliflozin or any of the excipients in FARXIGA. (4)
Overdose — what happens if you take too much
There were no reports of overdose during the clinical development program for FARXIGA. In the event of an overdose, consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdosage management recommendations. It is also reasonable to employ supportive measures as dictated by the patient’s clinical status. The removal of dapagliflozin by hemodialysis has not been studied.
U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.
Interactions
Table 4: Clinically Relevant Interactions with FARXIGA Insulin or Insulin Secretagogues Clinical Impact The risk of hypoglycemia may be increased when FARXIGA is used concomitantly with insulin or insulin secretagogues (e.g., sulfonylurea) [see Warnings and Precautions (5.4) ]. Intervention Concomitant use may require lower doses of insulin or the insulin secretagogue to reduce the risk of hypoglycemia. Lithium Clinical Impact Concomitant use of an SGLT2 inhibitor with lithium may decrease serum lithium concentrations. Intervention Monitor serum lithium concentration more frequently during FARXIGA initiation and dosage changes. Positive Urine Glucose Test Clinical Impact SGLT2 inhibitors increase urinary glucose excretion and will lead to positive urine glucose tests. Intervention Monitoring glycemic control with urine glucose tests is not recommended in patients taking SGLT2 inhibitors. Use alternative methods to monitor glycemic control. Interference with 1,5-anhydroglucitol (1,5-AG) Assay Clinical Impact Measurements of 1,5-AG are unreliable in assessing glycemic control in patients taking SGLT2 inhibitors. Intervention Monitoring glycemic control with 1,5-AG assay is not recommended. Use alternative methods to monitor glycemic control. • See full prescribing information for information on drug interactions and interference of FARXIGA with laboratory tests. (7) Drug Interactions In Vitro Assessment of Drug Interactions In in vitro studies, dapagliflozin and dapagliflozin 3-O-glucuronide neither inhibited CYP 1A2, 2C9, 2C19, 2D6, or 3A4, nor induced CYP 1A2, 2B6, or 3A4. Dapagliflozin is a weak substrate of the P-glycoprotein (P-gp) active transporter, and dapagliflozin 3-O-glucuronide is a substrate for the OAT3 active transporter. Dapagliflozin or dapagliflozin 3-O-glucuronide did not meaningfully inhibit P-gp, OCT2, OAT1, or OAT3 active transporters. Overall, dapagliflozin is unlikely to affect the pharmacokinetics of concurrently administered medications that are P-gp, OCT2, OAT1, or OAT3 substrates. Effects of Other Drugs on Dapagliflozin Table 5 shows the effect of coadministered drugs on the pharmacokinetics of dapagliflozin in adults. No dose adjustments are recommended for dapagliflozin. Table 5: Effects of Coadministered Drugs on Dapagliflozin Systemic Exposure Coadministered Drug (Dose Regimen) Single dose unless otherwise noted. Dapagliflozin (Dose Regimen) Effect on Dapagliflozin Exposure [% Change (90% CI)] C max AUC AUC = AUC(INF) for drugs given as single dose and AUC = AUC(TAU) for drugs given in multiple doses. No dosing adjustments required for the following: Oral Antidiabetic Agents Metformin (1000 mg) 20 mg ↔ ↔ Pioglitazone (45 mg) 50 mg ↔ ↔ Sitagliptin (100 mg) 20 mg ↔ ↔ Glimepiride (4 mg) 20 mg ↔ ↔ Voglibose (0.2 mg three times daily) 10 mg ↔ ↔ Other Medications Hydrochlorothiazide (25 mg) 50 mg ↔ ↔ Bumetanide (1 mg) 10 mg once daily for 7 days ↔ ↔ Valsartan (320 mg) 20 mg ↓12% [↓3%, ↓20%] ↔ Simvastatin (40 mg) 20 mg ↔ ↔ Anti-infective Agent Rifampin (600 mg once daily for 6 days) 10 mg ↓7% [↓22%, ↑11%] ↓22% [↓27%, ↓17%] Nonsteroidal Anti-inflammatory Agent Mefenamic Acid (loading dose of 500 mg followed by 14 doses of 250 mg every 6 hours) 10 mg ↑13% [↑3%, ↑24%] ↑51% [↑44%, ↑58%] ↔ = no change (geometric mean ratio of test: reference within 0.80 to 1.25); ↓ or ↑ = parameter was lower or higher, respectively, with coadministration compared to dapagliflozin administered alone (geometric mean ratio of test: reference was lower than 0.80 or higher than 1.25). Effects of Dapagliflozin on Other Drugs Table 6 shows the effect of dapagliflozin on other coadministered drugs in adults. Dapagliflozin did not meaningfully affect the pharmacokinetics of the coadministered drugs. Table 6: Effects of Dapagliflozin on the Systemic Exposures of Coadministered Drugs Coadministered Drug (Dose Regimen) Single dose unless otherwise noted. Dapagliflozin (Dose Regimen) Effect on Coadministered Drug Exposure (% Change [90% CI]) C max AUC AUC = AUC(INF) for drugs given as single dose and AUC = AUC(TAU) for drugs given in multiple doses. No dosing adjustments required for the following: Oral Antidiabetic Agents Metformin (1000 mg) 20 mg ↔ ↔ Pioglitazone (45 mg) 50 mg ↓7% [↓25%, ↑15%] ↔ Sitagliptin (100 mg) 20 mg ↔ ↔ Glimepiride (4 mg) 20 mg ↔ ↑13% [0%, ↑29%] Other Medications Hydrochlorothiazide (25 mg) 50 mg ↔ ↔ Bumetanide (1 mg) 10 mg once daily for 7 days ↑13% [↓2%, ↑31%] ↑13% [↓1%, ↑30%] Valsartan (320 mg) 20 mg ↓6% [↓24%, ↑16%] ↑5% [↓15%, ↑29%] Simvastatin (40 mg) 20 mg ↔ ↑19% Digoxin (0.25 mg) 20 mg loading dose then 10 mg once daily for 7 days ↔ ↔ Warfarin (25 mg) 20 mg loading dose then 10 mg once daily for 7 days ↔ ↔ ↔ = no change (geometric mean ratio of test: reference within 0.80 to 1.25); ↓ or ↑ = parameter was lower or higher, respectively, with coadministration compared to the other medicine administered alone (geometric mean ratio of test: reference was lower than 0.80 or higher than 1.25).
Drug class
May treat (source: NIH RxClass)
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Dosage forms
Tablet
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
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Frequently asked questions
- What does Farxiga treat?
- Farxiga (Dapagliflozin) may be used to treat type 2 diabetes mellitus, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
- How much does Farxiga cost?
- Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $6.15 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.
- Is there a coupon or discount for Farxiga?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Farxiga. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Farxiga?
- Farxiga is marketed by Astrazeneca Ab. You can see Astrazeneca Ab's full profile, rating, and other products on pharmaranks.
- Is Farxiga a brand-name or generic drug?
- Farxiga is a brand-name product with the active ingredient Dapagliflozin.
- Is Farxiga available over the counter?
- No. Farxiga is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Farxiga come in?
- Farxiga is currently marketed as tablet, per the FDA's National Drug Code Directory.
- What class of drug is Farxiga?
- Farxiga is classified as sodium-glucose cotransporter 2 inhibitor, per the FDA's Established Pharmacologic Class.
- Is Farxiga FDA-registered?
- Farxiga is on record with the U.S. FDA under application number NDA202293. You can verify this on its official FDA label.
- Is Farxiga safe?
- There's no single safe-or-not verdict, and we don't yet have a composite recall-safety score for Farxiga. Review its FDA-label side effects and warnings below, and always consult a licensed professional.
- What are the side effects of Farxiga?
- Farxiga's side effects are taken directly from its FDA label. From the label: The following important adverse reactions are described below and elsewhere in the labeling: • Diabetic Ketoacidosis in Patients with Type 1 Diabetes Mellitus and Other Ketoacidosis [see Warnings and Precautions (5.1) ] • Volume Depletion [see Warnings and Precautions (5.2) ] • Genitourinary Infecti… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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