Drug interactions
Cinnarizine + Methamphetamine
Severity: Minor
Cinnarizine 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
Methamphetamine may counteract the sedation of cinnarizine, while cinnarizine does not reliably reduce stimulant effects. Alertness may appear preserved even if psychomotor function is still impaired.
What this interaction means in plain words
Cinnarizine 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.
Cinnarizine belongs to Respiratory; Methamphetamine belongs to Central Nervous System.
Why it happens
Opposing CNS effects of a stimulant and a sedating antihistamine/calcium channel blocker; no established pharmacokinetic mechanism.
What to do
No routine action is needed; counsel about driving and machinery until individual response is known.
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 Cinnarizine
- Alprazolam + Cinnarizine Moderate
- Amitriptyline + Cinnarizine Moderate
- Amobarbital + Cinnarizine Moderate
- Aripiprazole + Cinnarizine Moderate
- Azelastine-fluticasone + Cinnarizine Moderate
- Azelastine + Cinnarizine Moderate
Frequently asked questions
Can I take Cinnarizine with Methamphetamine?
MediHelp rates the interaction as minor. Cinnarizine 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. Methamphetamine may counteract the sedation of cinnarizine, while cinnarizine does not reliably reduce stimulant effects. Alertness may appear preserved even if psychomotor function is still impaired.
How serious is the interaction between Cinnarizine 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: No routine action is needed; counsel about driving and machinery until individual response is known.
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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