Drug interactions
Dexchlorpheniramine + Levetiracetam
Severity: Moderate
Dexchlorpheniramine and Levetiracetam: moderate 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
Both agents can cause somnolence and reduced alertness. Combined use may intensify sedation and impair psychomotor performance.
What this interaction means in plain words
Dexchlorpheniramine and Levetiracetam can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dexchlorpheniramine belongs to Respiratory; Levetiracetam belongs to Central Nervous System.
Why it happens
Additive CNS depression between a first-generation antihistamine and levetiracetam.
What to do
Counsel the patient about additive drowsiness and avoidance of driving until tolerance is established. Switch to a non-sedating antihistamine if needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Levetiracetam
Other interactions of Dexchlorpheniramine
- Alprazolam + Dexchlorpheniramine Moderate
- Amisulpride + Dexchlorpheniramine Moderate
- Amitriptyline + Dexchlorpheniramine Moderate
- Amobarbital + Dexchlorpheniramine Moderate
- Asenapine + Dexchlorpheniramine Moderate
- Azelastine-fluticasone + Dexchlorpheniramine Moderate
Frequently asked questions
Can I take Dexchlorpheniramine with Levetiracetam?
MediHelp rates the interaction as moderate. Dexchlorpheniramine and Levetiracetam can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both agents can cause somnolence and reduced alertness. Combined use may intensify sedation and impair psychomotor performance.
How serious is the interaction between Dexchlorpheniramine and Levetiracetam?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel the patient about additive drowsiness and avoidance of driving until tolerance is established. Switch to a non-sedating antihistamine if needed.
What other medicines interact with Levetiracetam?
MediHelp also lists interactions of Levetiracetam with, for example, Oliceridine, Opium tincture, Sodium oxybate. The full list is on the Levetiracetam page.
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