Drug interactions
Dexchlorpheniramine + Melatonin
Severity: Moderate
Dexchlorpheniramine and Melatonin: 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
Dexchlorpheniramine is a sedating antihistamine, and melatonin can add to drowsiness. Impaired alertness is possible, especially in older adults.
What this interaction means in plain words
Dexchlorpheniramine and Melatonin 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; Melatonin belongs to Gastrointestinal Tract.
Why it happens
Additive CNS depression from H1 antagonism and melatonin receptor-mediated sedation.
What to do
Advise against driving or hazardous tasks until the response is known; reduce doses if excessive sedation occurs.
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 Melatonin
- Fluvoxamine + Melatonin Major
- Alfentanil + Melatonin Moderate
- Belladonna and opium + Melatonin Moderate
- Buprenorphine buccal + Melatonin Moderate
- Butabarbital + Melatonin Moderate
- Butalbital + Melatonin Moderate
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 Melatonin?
MediHelp rates the interaction as moderate. Dexchlorpheniramine and Melatonin 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 is a sedating antihistamine, and melatonin can add to drowsiness. Impaired alertness is possible, especially in older adults.
How serious is the interaction between Dexchlorpheniramine and Melatonin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise against driving or hazardous tasks until the response is known; reduce doses if excessive sedation occurs.
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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