Drug interactions
Methamphetamine + Paliperidone
Severity: Moderate
Methamphetamine and Paliperidone: 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
Methamphetamine's dopamine-releasing effects oppose the D2 blockade of paliperidone, which can reduce antipsychotic control and may worsen psychosis. Both drugs can also cause tachycardia or other cardiovascular effects.
What this interaction means in plain words
Methamphetamine and Paliperidone 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.
Methamphetamine belongs to Central Nervous System; Paliperidone belongs to Central Nervous System.
Why it happens
Opposing pharmacodynamic actions at dopamine D2 receptors.
What to do
Monitor for worsening psychotic symptoms and for changes in heart rate and blood pressure. Reassess the need for the stimulant in patients with psychotic illness.
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
Other interactions of Paliperidone
- Ibutilide + Paliperidone Contraindicated
- Paliperidone + Pimozide Contraindicated
- Paliperidone + Vandetanib Contraindicated
- Adagrasib + Paliperidone Major
- Amiodarone + Paliperidone Major
- Amisulpride + Paliperidone Major
Frequently asked questions
Can I take Methamphetamine with Paliperidone?
MediHelp rates the interaction as moderate. Methamphetamine and Paliperidone 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. Methamphetamine's dopamine-releasing effects oppose the D2 blockade of paliperidone, which can reduce antipsychotic control and may worsen psychosis. Both drugs can also cause tachycardia or other cardiovascular effects.
How serious is the interaction between Methamphetamine and Paliperidone?
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 for worsening psychotic symptoms and for changes in heart rate and blood pressure. Reassess the need for the stimulant in patients with psychotic illness.
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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