Drug interactions
Dexchlorpheniramine + Methamphetamine
Severity: Minor
Dexchlorpheniramine and Methamphetamine: 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
Dexchlorpheniramine is a sedating antihistamine and methamphetamine is a stimulant. The stimulant may mask drowsiness, and the combination may add to tachycardia and anxiety. The net effect is unpredictable.
What this interaction means in plain words
Dexchlorpheniramine and Methamphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dexchlorpheniramine belongs to Respiratory; Methamphetamine belongs to Central Nervous System.
Why it happens
Opposing CNS effects with additive anticholinergic and sympathomimetic cardiovascular effects.
What to do
Monitor alertness and heart rate. Advise patients not to rely on perceived alertness when driving.
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 Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
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 Methamphetamine?
MediHelp rates the interaction as minor. Dexchlorpheniramine and Methamphetamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dexchlorpheniramine is a sedating antihistamine and methamphetamine is a stimulant. The stimulant may mask drowsiness, and the combination may add to tachycardia and anxiety. The net effect is unpredictable.
How serious is the interaction between Dexchlorpheniramine and Methamphetamine?
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 alertness and heart rate. Advise patients not to rely on perceived alertness when driving.
What other medicines interact with Methamphetamine?
MediHelp also lists interactions of Methamphetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methamphetamine page.
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