section name header

Pronunciation

kan-a-gli-FLOE-zin

Classifications

Therapeutic Classification: antidiabetics

Pharmacologic Classification: sodium-glucose co-transporter 2 (SGLT2) inhibitors

Indications

BEERS REMS


Action

  • Inhibits proximal renal tubular sodium-glucose cotransporter 2 (SGLT2), which determines reabsorption of glucose from the tubular lumen. Inhibits reabsorption of glucose, lowers renal threshold for glucose, and excretion of glucose in urine.
Therapeutic effects:
  • Improved glycemic control.
  • Reduction in risk of cardiovascular death, nonfatal MI, and nonfatal stroke.
  • Reduction in risk of ESKD, doubling of serum creatinine, cardiovascular death, and HF hospitalizations.

Pharmacokinetics

Absorption: Well absorbed (65%) following oral administration.

Distribution: Extensive tissue distribution.

Protein Binding: 99%

Metabolism/Excretion: Mostly metabolized by UDP-glucuronyl transferases (UGT) to inactive metabolites, minimal metabolism by CYP3A4 (7%). 50% excreted in feces as parent drug and metabolites; 33% as metabolites in urine; <1% excreted in urine as unchanged drug.

Half-Life: 10.6 hr

Time/Action Profile

(effects on A1c)

ROUTEONSETPEAKDURATION
POunknownunknown24 hr

Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

CV: hypotension

Endo: hypoglycemia ( with other medications)

F and E: hypermagnesemia, hyperphosphatemia, KETOACIDOSIS, thirst

GI: abdominal pain, constipation, nausea

GU: female mycotic infections, renal function, urination, acute kidney injury, glucosuria, male mycotic infections, NECROTIZING FASCIITIS OF PERINEUM (FOURNIER GANGRENE), UTI (including pyelonephritis), UROSEPSIS, vulvovaginal pruritus

Metab: hyperlipidemia

MS: bone fractures, lower limb amputation

Misc: HYPERSENSITIVITY REACTIONS (INCLUDING ANAPHYLAXIS OR ANGIOEDEMA)

Interactions

Drug-drug:

Route/Dosage

Improvement in Glycemic Control in Type 2 Diabetes

Renal Impairment

Reduction in Risk of Major Adverse Cardiovascular Events in Patients with Type 2 Diabetes Mellitus and Established Cardiovascular Disease or Reduction in Risk of End-Stage Kidney Disease, Doubling of Serum Creatinine, Cardiovascular Death, and Hospitalization for HF in Patients with Type 2 Diabetes Mellitus and Diabetic Nephropathy with Albuminuria >300 mg/day

Renal Impairment

Availability

(Generic available)
  • Tablets: 100 mg; 300 mg
  • In combination with:
  • metformin (Invokamet); metformin XR (Invokamet XR). See Combination Drugs.

Assessment

  • Monitor for signs and symptoms of diabetic and other ketoacidoses especially with underinsulinization, acute febrile illness, caloric intake, ketogenic diet, surgery, hypovolemia, and alcohol misuse. If suspected, discontinue canagliflozin, evaluate, and treat if confirmed. Resume when ketoacidosis resolves.
  • Monitor for signs and symptoms of hypovolemia (dizziness, feeling faint, weakness, orthostatic hypotension) after initiating therapy.
  • Monitor for signs and symptoms of infection, including osteomyelitis. If symptoms occur, discontinue canagliflozin.
  • Monitor for signs and symptoms of UTI; treat promptly as clinically indicated.

Lab Test Considerations:

  • Monitor A1c prior to and periodically during therapy.
    • May uric acid levels.
    • Monitor renal function prior to and periodically during therapy, especially in patients with eGFR <60 mL/min/1.73 m2. May serum creatinine and eGFR.
    • May serum potassium, magnesium, and phosphate levels. Monitor electrolytes periodically during therapy.
    • May LDL-C. Monitor lipid profile periodically during therapy.
    • Causes positive test for urine glucose.
    • Hyperglycemia related to ketoacidosis may be lower (< 250 mg/dL) and persist longer than typically expected. Urinary glucose excretion persists for 3 days after canagliflozin is discontinued.

Implementation

  • Patients stabilized on a diabetic regimen who are exposed to stress, fever, trauma, infection, or surgery may require administration of insulin.
  • Correct volume depletion prior to beginning therapy with canagliflozin.
  • PO: Administer before the first meal of the day.

Patient/Family Teaching

  • Instruct patient to take canagliflozin as directed. Take missed doses as soon as remembered, unless it is almost time for next dose; do not double doses. Advise patient to read the Medication Guide before starting and with each Rx refill in case of changes.
  • Advise patient to notify health care professional of all Rx or OTC medications, vitamins, or herbal products being taken and to consult with health care professional before taking other medications, especially other oral hypoglycemic medications.
  • Explain to patient that canagliflozin helps control hyperglycemia but does not cure diabetes.
  • Encourage patient to follow prescribed diet, medication, preventative foot care, and exercise regimen to prevent hyperglycemia, hypoglycemia, and lower limb amputation.
  • Review signs and symptoms of hypoglycemia (pallor, shakiness, diaphoresis, headache, hunger, nausea), hyperglycemia, and ketoacidosis (nausea, vomiting, abdominal pain, malaise, dyspnea). If hypoglycemia occurs, advise patient to take a glass of orange juice or 2–3 teaspoons of sugar, honey, or corn syrup dissolved in water and notify health care professional. If ketoacidosis occurs, instruct patient to discontinue canagliflozin and seek medical attention immediately.
  • Instruct patient in proper testing of blood glucose and urine ketones, especially during periods of stress, surgery, or illness. Inform patient that canagliflozin will cause a positive urine glucose test. Notify health care professional if significant changes occur.
  • Advise patient to discontinue canagliflozin and notify health care professional if new pain or tenderness, sores or ulcers, or infections involving the leg or foot occur and to immediately seek care if pain or tenderness, redness, or swelling of the genitals or area from the genitals back to the rectum, along with a fever >100.4°F or malaise, occur.
  • Advise patient to notify health care professional if signs or symptoms of yeast infection (vaginal odor, discharge, or itching; penile redness, itching, rash, pain, swelling, odor, or discharge) occur.
  • Advise patient to discontinue canagliflozin and notify health care professional promptly if rash; hives; or swelling of face, lips, or throat occurs.
  • Advise patient to notify health care professional of medication regimen before procedures that require prolonged fasting or surgery. Hold dose for 3 days before surgery. Restart canagliflozin when patient is medically stable and has resumed oral intake.
  • Inform patient of risk for UTIs, hypotension, and bone fractures, and discuss factors that may risk of these events.
  • Rep: May cause fetal harm. Advise women of reproductive potential to use effective contraception and avoid breastfeeding during therapy, especially during the 2nd and 3rd trimesters. Advise patient to notify health care professional if pregnancy is planned or suspected.

Evaluation/Desired Outcomes

  • Improved A1c and glycemic control in adults with type 2 diabetes.
  • Reduced risk of cardiovascular death, nonfatal MI, and nonfatal stroke.
  • Reduced risk of ESKD, doubling of serum creatinine, cardiovascular death, and HF hospitalizations.

US Brand Names

Invokana

Code

NDC Code