Drug interactions
Canagliflozin-metformin + Trifluoperazine
Severity: Minor
Canagliflozin-metformin and Trifluoperazine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Phenothiazine antipsychotics such as trifluoperazine can impair glucose tolerance and raise blood glucose in some patients. This may reduce the glucose-lowering effect of the canagliflozin-metformin combination. The effect is usually modest but can matter in poorly controlled diabetes.
What this interaction means in plain words
Canagliflozin-metformin and Trifluoperazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Pharmacodynamic antagonism: phenothiazines may reduce insulin secretion and sensitivity, opposing antihyperglycemic therapy.
What to do
Monitor blood glucose and HbA1c after starting or stopping trifluoperazine. Adjust antidiabetic therapy if control changes.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Canagliflozin-metformin
Frequently asked questions
Can I take Canagliflozin-metformin with Trifluoperazine?
MediHelp rates the interaction as minor. Canagliflozin-metformin and Trifluoperazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Phenothiazine antipsychotics such as trifluoperazine can impair glucose tolerance and raise blood glucose in some patients. This may reduce the glucose-lowering effect of the canagliflozin-metformin combination. The effect is usually modest but can matter in poorly controlled diabetes.
How serious is the interaction between Canagliflozin-metformin and Trifluoperazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose and HbA1c after starting or stopping trifluoperazine. Adjust antidiabetic therapy if control changes.
What other medicines interact with Canagliflozin-metformin?
MediHelp also lists interactions of Canagliflozin-metformin with, for example, Contrast media, Diatrizoate, Diatrizoate meglumine / diatrizoate. The full list is on the Canagliflozin-metformin page.
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