Drug interactions
Levothyroxine + Piracetam
Severity: Minor
Levothyroxine and Piracetam: 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
A single case report described confusion and sleep disturbance when piracetam was combined with thyroid hormone therapy. The relationship is unconfirmed and the clinical significance is uncertain.
What this interaction means in plain words
Levothyroxine and Piracetam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Levothyroxine belongs to Endocrine; Piracetam belongs to Gastrointestinal Tract.
Why it happens
The mechanism is not established; possible additive CNS stimulation has been suggested.
What to do
No routine change is needed. If confusion or insomnia appears, review thyroid status and consider reducing the piracetam dose.
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 Levothyroxine
Other interactions of Piracetam
- Cilostazol + Piracetam Moderate
- Dipyridamole + Piracetam Moderate
- Eptifibatide + Piracetam Moderate
- Piracetam + Prasugrel Moderate
- Piracetam + Tirofiban Moderate
- Clopidogrel + Piracetam Minor
Frequently asked questions
Can I take Levothyroxine with Piracetam?
MediHelp rates the interaction as minor. Levothyroxine and Piracetam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. A single case report described confusion and sleep disturbance when piracetam was combined with thyroid hormone therapy. The relationship is unconfirmed and the clinical significance is uncertain.
How serious is the interaction between Levothyroxine and Piracetam?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed. If confusion or insomnia appears, review thyroid status and consider reducing the piracetam dose.
What other medicines interact with Levothyroxine?
MediHelp also lists interactions of Levothyroxine with, for example, Cholestyramine, Sodium iodide i-131, Tiratricol. The full list is on the Levothyroxine page.
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