canagliflozin, Invokana

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Jay W. Marks, MD
    Jay W. Marks, MD

    Jay W. Marks, MD

    Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

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What is canagliflozin, and how does it work (mechanism of action)?

Canagliflozin is an oral drug that reduces blood sugar (glucose) levels in patients with type 2 diabetes. It is a new type of diabetes medication in a class of medications called sodium-glucose co-transporter 2 (SGLT2) inhibitors. Under normal conditions, glucose is filtered out of the blood and into the kidney tubules as blood passes through the kidneys. The glucose then as absorbed from the tubules back into the blood so that glucose is not lost in the urine. SGLT2 is an enzyme in the kidney tubule that causes glucose to be reabsorbed from urine. Canagliflozin blocks the action of SGLT2. Therefore, canagliflozin reduces the reabsorption of glucose from renal tubules, leading to more excretion of glucose in urine. Canagliflozin was approved by the FDA in March 2013.

What brand names are available for canagliflozin?

Invokana

Is canagliflozin available as a generic drug?

GENERIC AVAILABLE: No

Do I need a prescription for canagliflozin?

Yes

What are the side effects of canagliflozin?

AND PRECAUTIONSThe most common side effects of canagliflozin are:

Other side effects of canagliflozin include:

Quick GuideDiabetes Diet: Healthy Meal Plans for Diabetes-Friendly Eating

Diabetes Diet: Healthy Meal Plans for Diabetes-Friendly Eating

What is the dosage for canagliflozin?

Canagliflozin should be taken before the first meal of the day. The recommended starting dose is 100 mg once daily and the maximum dose is 300 mg once daily. Renal function should be assessed prior to starting canagliflozin and periodically during treatment, and the dose of canagliflozin should be modified based on renal function.

Which drugs or supplements interact with canagliflozin?

: Canagliflozin may slightly increase the concentration of digoxin (Lanoxin) in the body when both drugs are being taken. Digoxin concentrations should be monitored appropriately.

Rifampin, phenytoin (Dilantin, Dilantin-125, phenobarbital, and ritonavir (Norvir) may reduce the effect of canagliflozin by increasing its elimination and reducing its concentration in the body. The dose of canagliflozin should be increased to 300 mg daily when combined with rifampin, phenytoin, phenobarbital, or ritonavir.

Monitoring glucose control with urine glucose tests is not recommended in patients taking canagliflozin and similar drugs. These drugs increase urinary glucose excretion and will lead to positive urine glucose tests. Use alternative methods to monitor glucose control.

Is canagliflozin safe to take if I'm pregnant or breastfeeding?

It is unknown whether canagliflozin is secreted in human breast milk.

What else should I know about canagliflozin?

What preparations of canagliflozin are available?

Tablets: 100 and 300 mg

How should I keep canagliflozin stored?

Tablets should be stored at room temperature, 15 C to 30 C (59 F to 86 F)

REFERENCE: FDA prescribing information.

Quick GuideDiabetes Diet: Healthy Meal Plans for Diabetes-Friendly Eating

Diabetes Diet: Healthy Meal Plans for Diabetes-Friendly Eating

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Reviewed on 1/12/2015
References
REFERENCE: FDA prescribing information.

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