Drug interactions
Melatonin + Trifluoperazine
Severity: Minor
Melatonin 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
Trifluoperazine is a phenothiazine antipsychotic that can cause sedation. Melatonin may add mild drowsiness.
What this interaction means in plain words
Melatonin 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
Additive central nervous system depression.
What to do
Monitor for excessive drowsiness and advise caution when driving. Reduce the melatonin dose if sedation is troublesome.
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 Melatonin
- Fluvoxamine + Melatonin Major
- Alfentanil + Melatonin Moderate
- Belladonna and opium + Melatonin Moderate
- Buprenorphine buccal + Melatonin Moderate
- Butabarbital + Melatonin Moderate
- Butalbital + Melatonin Moderate
Frequently asked questions
Can I take Melatonin with Trifluoperazine?
MediHelp rates the interaction as minor. Melatonin 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. Trifluoperazine is a phenothiazine antipsychotic that can cause sedation. Melatonin may add mild drowsiness.
How serious is the interaction between Melatonin 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 for excessive drowsiness and advise caution when driving. Reduce the melatonin dose if sedation is troublesome.
What other medicines interact with Melatonin?
MediHelp also lists interactions of Melatonin with, for example, Fluvoxamine, Alfentanil, Belladonna and opium. The full list is on the Melatonin page.
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