Generic name: canagliflozin [ kan-a-gli-FLOE-zin ]
Drug class: SGLT-2 inhibitors
Medically reviewed by Drugs.com. Last updated on Jan 16, 2023.
Uses for canagliflozin
Canagliflozin is used together with proper diet and exercise to treat type 2 diabetes. It is also used to lower the risk of heart attack, stroke, or death in patients with type 2 diabetes and heart or blood vessel disease. This medicine works in the kidneys to prevent absorption of glucose (blood sugar). This helps lower the blood sugar level. Canagliflozin does not help patients who have insulin-dependent or type 1 diabetes. Type 1 diabetic patients must use insulin injections.
Canagliflozin is also used to lower the risk of end stage kidney disease, worsening of kidney function, and hospitalization for heart failure in patients with type 2 diabetes and diabetic kidney disease with a certain amount of protein in the urine.
This medicine is available only with your doctor's prescription.
Before using canagliflozin
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of canagliflozin in the pediatric population. Safety and efficacy have not been established.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of canagliflozin in the elderly. However, elderly patients are more likely to have unwanted effects (eg, lightheadedness, dizziness, fainting, or dehydration), which may require caution in patients receiving canagliflozin.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Abiraterone Acetate
- Thioctic Acid
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Alcohol abuse, history of or
- Hypovolemia (low blood volume) or
- Pancreatic insulin deficiency (eg, pancreatitis, pancreatic surgery), history of—May increase risk for more serious side effects.
- Blood vessel disease or
- Diabetic foot ulcer or
- Leg amputation (leg removal surgery), history of or
- Neuropathy (nerve problem) of the leg—May increase the risk of leg amputations.
- Dehydration or
- Genital yeast (fungus) infection (eg, balanitis, balanoposthitis, vulvovaginitis), history of or
- Hypotension (low blood pressure) or
- Kidney disease or
- Urinary tract infection (eg, pyelonephritis, urosepsis), history of—Use with caution. May make these conditions worse.
- Diabetic ketoacidosis (high ketones and acid in the blood) or
- Liver disease, severe or
- Type I diabetes—Should not be used in patients with these conditions.
- Fever or
- Infection or
- Surgery or
- Trauma—Use with caution. These conditions may cause problems with blood sugar control.
Proper use of canagliflozin
Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.
This medicine should come with a Medication Guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.
Take this medicine before the first meal of the day.
Tell your doctor if you are on a low-salt or sodium diet.
Carefully follow the special meal plan your doctor gave you. This is the most important part of controlling your diabetes, and will help the medicine work properly. Exercise regularly and test for sugar in your blood or urine as directed.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For type 2 diabetes and to lower risk of death in patients with type 2 diabetes and heart and blood vessel disease and end stage kidney disease:
- Adults—At first, 100 milligrams (mg) once a day, taken before the first meal of the day. Your doctor may adjust your dose as needed. However, the dose is usually not more than 300 mg once a day.
- Children—Use and dose must be determined by your doctor.
- For type 2 diabetes and to lower risk of death in patients with type 2 diabetes and heart and blood vessel disease and end stage kidney disease:
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions while using canagliflozin
It is very important that your doctor check your progress at regular visits, especially during the first few weeks that you take this medicine. Blood and urine tests may be needed to check for unwanted effects.
Using this medicine during the second and third part of your pregnancy can harm your unborn baby. If you think you have become pregnant while using this medicine, tell your doctor right away.
This medicine may increase your risk of having leg, toe, or midfoot amputation (leg removal surgery). Check with your doctor right away if you have pain, tenderness, sores or ulcers, or infections on your leg or foot.
Dizziness, lightheadedness, or fainting may occur with this medicine. This is more common if you have kidney disease, low blood pressure, or if you are taking a diuretic (water pill). Taking plenty of fluids each day may help. Drink plenty of water during exercise or in hot weather. Check with your doctor if you have severe nausea, vomiting, or diarrhea that does not stop. This may cause you to lose too much water.
Ketoacidosis (high ketones and acid in the blood) may occur while you are using this medicine. This can be life-threatening and requires immediate medical attention. Your doctor may give you insulin, fluid, and carbohydrate replacement to treat this condition. Tell your doctor right away if you have nausea, vomiting, trouble breathing, increased thirst or urination.
Check with your doctor right away if you have bloody urine, decrease in how much or how often you urinate, an increase in blood pressure, increased thirst, loss of appetite, lower back or side pain, nausea, swelling of the face, fingers, or lower legs, trouble breathing, unusual tiredness or weakness, vomiting, or weight gain. These could be symptoms of a serious kidney problem.
This medicine may cause vaginal yeast infections in women and yeast infections of the penis in men. This is more common in patients who have a history of genital yeast infections or in men who are not circumcised. Women may have a vaginal discharge, itching, or odor. Men may have redness, itching, swelling, or pain around the penis, or a discharge with a strong odor from the penis. Check with your doctor right away if you have any of these symptoms.
Serious allergic reactions may occur with this medicine. Check with your doctor right away if you have a skin rash, hives or welts, itching, redness of the skin, trouble breathing, or large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals.
This medicine may increase the risk of bone fractures. Ask your doctor about ways to keep your bones strong to help prevent fractures.
This medicine may cause hypoglycemia (low blood sugar). This is more common when this medicine is taken together with other diabetes medicines (eg, insulin, glipizide, or glyburide). Low blood sugar must be treated before it causes you to pass out (unconsciousness). People feel different symptoms of low blood sugar. It is important that you learn which symptoms you usually have so you can treat it quickly. Talk to your doctor about the best way to treat low blood sugar.
Hyperglycemia (high blood sugar) may occur if you do not take enough or skip a dose of your diabetes medicine, overeat or do not follow your diet plan, have a fever or infection, or do not exercise as much as usual. Some symptoms of high blood sugar include blurred vision, drowsiness, dry mouth, flushed and dry skin, a fruit-like breath odor, increased frequency and amount of urination, ketones in the urine, loss of appetite, nausea or vomiting, rapid and deep breathing, tiredness, or unusual thirst. If symptoms of high blood sugar occur, check your blood sugar level and call your doctor for instructions.
This medicine may increase risk of having urinary tract infections, including pyelonephritis or urosepsis. Check with your doctor right away if you have bladder pain, bloody or cloudy urine, difficult, burning, or painful urination, or lower back or side pain.
This medicine may cause a rare but serious bacterial infection, called necrotizing fasciitis of the perineum or Fournier's gangrene, which can cause damage to the tissue under the skin in the area between and around the anus and genitals (perineum). Fournier's gangrene may lead to hospitalization, multiple surgeries, or death. Check with your doctor right away if you have fever, unusual tiredness or weakness, or pain, tenderness, redness, or swelling of the area between and around your anus and genitals.
This medicine may cause serious allergic reactions, including anaphylaxis or angioedema. These reactions can be life-threatening and require immediate medical attention. Call your doctor right away if you have a rash, itching, blistering, peeling, or loosening of the skin, fever or chills, trouble breathing or swallowing, or any swelling of your hands, face, mouth, or throat while you are using this medicine.
Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests (eg, urine glucose tests may not be accurate). Also, you may need to stop taking this medicine at least 3 days before you have surgery.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Side Effects of canagliflozin
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
- Bladder pain
- bloody or cloudy urine
- decreased frequency or amount of urine
- difficult, burning, or painful urination
- discharge with a strong odor from the penis
- frequent urge to urinate
- increased thirst
- increased urge to urinate during the night
- itching of the vagina or outside of the genitals
- loss of appetite
- lower back or side pain
- pain during sexual intercourse
- pain in the skin around the penis
- problems in urination or increase in amount of urine
- redness, itching, or swelling of the penis
- swelling of the face, fingers, or lower legs
- thick, white vaginal discharge with mild or no odor
- trouble breathing
- unusual tiredness or weakness
- waking to urinate at night
- weight gain
- blurred vision
- cold sweats
- cool, pale skin
- dry mouth
- fast or irregular heartbeat
- flushing, redness of the skin
- hives or welts, itching skin, rash
- increased hunger
- itching skin
- large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
- redness of the skin
- slurred speech
- unusually warm skin
Incidence not known
- Dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
- flushed, dry skin
- frequent or painful urination
- fruit-like breath odor
- increased urination
- loss of consciousness
- numbness or tingling in the hands, feet, or lips
- pain, tenderness, redness, or swelling of the area between the anus and genitals
- stomach pain
- unexplained weight loss
- weakness or heaviness of the legs
- yellow eyes or skin
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
- Difficulty having a bowel movement
- lack or loss of strength
- pain or swelling in the arms or legs without an injury
- Increased sensitivity of the skin to sunlight
- redness or other discoloration of the skin
- severe sunburn
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
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