Drug interactions
Insulin degludec + Trifluoperazine
Severity: Minor
Insulin degludec 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
Phenothiazines can raise blood glucose and reduce glycemic control, which may increase insulin requirements. The effect is variable and generally modest with trifluoperazine.
What this interaction means in plain words
Insulin degludec 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, possibly through reduced insulin secretion and increased insulin resistance. The mechanism is not fully established.
What to do
Monitor blood glucose when trifluoperazine is started or changed. Adjust the insulin degludec dose if control worsens.
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 Insulin degludec
Frequently asked questions
Can I take Insulin degludec with Trifluoperazine?
MediHelp rates the interaction as minor. Insulin degludec 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. Phenothiazines can raise blood glucose and reduce glycemic control, which may increase insulin requirements. The effect is variable and generally modest with trifluoperazine.
How serious is the interaction between Insulin degludec 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 when trifluoperazine is started or changed. Adjust the insulin degludec dose if control worsens.
What other medicines interact with Insulin degludec?
MediHelp also lists interactions of Insulin degludec with, for example, Alogliptin-pioglitazone, Ethanol, Glimepiride-pioglitazone. The full list is on the Insulin degludec page.
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