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Drug Interactions between Invokana and Minizide

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

prazosin polythiazide

Applies to: Minizide (polythiazide / prazosin) and Minizide (polythiazide / prazosin)

Before taking polythiazide, tell your doctor if you also use prazosin. You may need dose adjustments or special tests in order to safely take both medications together. The blood pressure lowering effects of this combination may be additive. You should take prazosin at bedtime and to notify your doctor if have dizziness or feel faint. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

prazosin canagliflozin

Applies to: Minizide (polythiazide / prazosin) and Invokana (canagliflozin)

Canagliflozin may cause salt and water loss, which may increase the risk of dehydration and low blood pressure when used with prazosin or similar medications. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate. Use caution when getting up from a sitting or lying position, and let your doctor know if you develop these symptoms. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Keep yourself hydrated by drinking plenty of fluids unless otherwise directed. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

polythiazide canagliflozin

Applies to: Minizide (polythiazide / prazosin) and Invokana (canagliflozin)

Canagliflozin may add to the diuretic effects of polythiazide. This may increase the risk of dehydration, kidney problems, and low blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate. Use caution when getting up from a sitting or lying position, and let your doctor know if you develop these symptoms. Keep yourself hydrated by drinking plenty of fluids unless otherwise directed. You should seek medical advice immediately if you have reduced oral intake (for example, due to acute illness) or increased fluid loss (for example, due to vomiting, diarrhea, or excessive heat exposure), as it may be appropriate to interrupt one or both medications temporarily under these circumstances. In addition, polythiazide may interfere with blood glucose control and reduce the effectiveness of canagliflozin and other diabetic medications. Monitor your blood sugar levels closely. You may need a dose adjustment of your diabetic medications during and after treatment with polythiazide. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Drug and food interactions

Moderate

canagliflozin food

Applies to: Invokana (canagliflozin)

Alcohol may affect blood glucose levels in patients with diabetes. Both hypoglycemia (low blood sugar) and hyperglycemia (high blood sugar) may occur, depending on how much and how often you drink. You should avoid using alcohol if your diabetes is not well controlled or if you have high triglycerides, neuropathy (nerve damage), or pancreatitis. Moderate alcohol consumption generally does not affect blood glucose levels if your diabetes is under control. However, it may be best to limit alcohol intake to one drink daily for women and two drinks daily for men (1 drink = 5 oz wine, 12 oz beer, or 1.5 oz distilled spirits) in conjunction with your normal meal plan. Avoid drinking alcohol on an empty stomach or following exercise, as it may increase the risk of hypoglycemia. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

prazosin food

Applies to: Minizide (polythiazide / prazosin)

Ask your doctor before using prazosin together with ethanol. Using prazosin with ethanol can lower your blood pressure. This can cause dizziness or feeling like you might pass out, especially when getting up from a sitting or lying position. This may be more likely to occur when you first start taking either of these medications. You may need a dose adjustment or need your blood pressure checked more often if you take both medications. You may develop flushing, warmth or redness under your skin or tingly feeling after alcohol intake (especially in you are of Asian descent) and should be advised to avoid alcohol or limit your intake. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

polythiazide food

Applies to: Minizide (polythiazide / prazosin)

Polythiazide and ethanol may have additive effects in lowering your blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate. These side effects are most likely to be seen at the beginning of treatment, following a dose increase, or when treatment is restarted after an interruption. Let your doctor know if you develop these symptoms and they do not go away after a few days or they become troublesome. Avoid driving or operating hazardous machinery until you know how the medications affect you, and use caution when getting up from a sitting or lying position. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.