Drug interactions
Canagliflozin-metformin + Guanfacine
Severity: Minor
Canagliflozin-metformin and Guanfacine: 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
Guanfacine, a central alpha-2 agonist, may blunt the adrenergic warning symptoms of hypoglycemia such as tremor and palpitations. The risk is low with metformin and canagliflozin, which rarely cause hypoglycemia alone.
What this interaction means in plain words
Canagliflozin-metformin and Guanfacine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Canagliflozin-metformin belongs to Endocrine; Guanfacine belongs to Cardiovascular.
Why it happens
Central sympatholytic action reduces catecholamine-mediated symptoms of hypoglycemia.
What to do
Advise patients that hypoglycemia may be less noticeable and use blood glucose monitoring, especially if insulin or a sulfonylurea is also used.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Canagliflozin-metformin and Guanfacine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Canagliflozin-metformin
Other interactions of Guanfacine
- Clonidine + Guanfacine Major
- Guanfacine + Lofexidine Major
- Aldesleukin + Guanfacine Moderate
- Amiodarone + Guanfacine Moderate
- Amisulpride + Guanfacine Moderate
- Amitriptyline + Guanfacine Moderate
Frequently asked questions
Can I take Canagliflozin-metformin with Guanfacine?
MediHelp rates the interaction as minor. Canagliflozin-metformin and Guanfacine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Guanfacine, a central alpha-2 agonist, may blunt the adrenergic warning symptoms of hypoglycemia such as tremor and palpitations. The risk is low with metformin and canagliflozin, which rarely cause hypoglycemia alone.
How serious is the interaction between Canagliflozin-metformin and Guanfacine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients that hypoglycemia may be less noticeable and use blood glucose monitoring, especially if insulin or a sulfonylurea is also used.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
