Drug interactions
Methamphetamine + Thiothixene
Severity: Moderate
Methamphetamine and Thiothixene: 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
Thiothixene is a sedating antipsychotic that blocks dopamine receptors, which counteracts the dopaminergic stimulation produced by methamphetamine. Efficacy of either drug may be reduced, and both can affect heart rate and blood pressure.
What this interaction means in plain words
Methamphetamine and Thiothixene 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.
Why it happens
Pharmacodynamic antagonism: dopamine D2 blockade versus stimulant-induced dopamine release.
What to do
Monitor psychiatric status and cardiovascular parameters. Avoid stimulants in patients with psychosis being treated with antipsychotics unless clearly justified.
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 Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
Frequently asked questions
Can I take Methamphetamine with Thiothixene?
MediHelp rates the interaction as moderate. Methamphetamine and Thiothixene 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. Thiothixene is a sedating antipsychotic that blocks dopamine receptors, which counteracts the dopaminergic stimulation produced by methamphetamine. Efficacy of either drug may be reduced, and both can affect heart rate and blood pressure.
How serious is the interaction between Methamphetamine and Thiothixene?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor psychiatric status and cardiovascular parameters. Avoid stimulants in patients with psychosis being treated with antipsychotics unless clearly justified.
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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