NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Reviewed May 26, 2026

Paliperidone

Prescription ·Strong evidence ·Reviewed May 2026

Paliperidone is the active metabolite of risperidone and is used for schizophrenia and schizoaffective disorder. Oral extended-release dosing is strongly affected by renal function, and long-acting paliperidone palmitate injections are used for maintenance treatment. Like other antipsychotics, it carries a boxed warning for increased mortality in elderly patients with dementia-related psychosis.

Evidence tier
Strong
Indexed sources
3 2007–2025
Interactions
4
Category
Prescription
Read the sources → Compare profiles
What it's good for
  • Treatment of schizophrenia1,2
  • Treatment of schizoaffective disorder3
  • Maintenance therapy with long-acting injectable formulations
  • Relapse prevention in stabilized patients
What to watch for
  • Extrapyramidal symptoms
  • Akathisia
  • Somnolence
  • Hypersensitivity to paliperidone, risperidone, or formulation components2,3
  • Avoid use in severe renal impairment for oral products when labeling does not support safe dosing3

The bottom line

Evidence rating strong. Most-documented uses: treatment of schizophrenia, treatment of schizoaffective disorder, maintenance therapy with long-acting injectable formulations. 3 sources indexed (2007–2025), with 4 interaction records on file.

The science

How it works, mechanistically.

Core mechanism

Paliperidone antagonizes dopamine D2 and serotonin 5-HT2A receptors, with additional alpha-adrenergic and histamine receptor activity. Antipsychotic effects are primarily related to dopamine-serotonin blockade. The drug is substantially renally eliminated, so kidney function has major dosing implications; it can also increase prolactin and modestly prolong QT interval in susceptible patients.2,3

Class
Atypical antipsychotic
Dosing

Dosing & protocol.

Common range
Oral extended-release: commonly 6 mg once daily in adults, with range 3-12 mg once daily adjusted for response and renal function. Long-acting injectable dosing depends on product, prior tolerability, and renal function.
Recommended form
Oral extended-release tablet swallowed whole, or long-acting injectable paliperidone palmitate after oral tolerability is established

Oral extended-release tablets may be taken with or without food but should be taken consistently the same way. Tablets must be swallowed whole.

Safety

Full safety detail.

Side effects

  • Extrapyramidal symptoms
  • Akathisia
  • Somnolence
  • Weight gain
  • Hyperprolactinemia
  • Orthostatic hypotension
  • QT prolongation
  • Hyperglycemia and dyslipidemia
  • Injection-site reactions for long-acting products
  • Neuroleptic malignant syndrome
  • Tardive dyskinesia

Contraindications

  • Hypersensitivity to paliperidone, risperidone, or formulation components2,3
  • Avoid use in severe renal impairment for oral products when labeling does not support safe dosing3
  • Avoid with substantial QT prolongation or high-risk QT combinations unless specialist-supervised
Interactions

Interaction records.

ModerateCaution

Ginkgo Biloba

Ginkgo has seizure case reports, and antipsychotics can lower seizure threshold in susceptible patients.

Recommendation: Avoid or use cautiously in seizure-prone patients.

ModerateCaution

Melatonin

Melatonin may add to paliperidone-related somnolence or dizziness.

Recommendation: Use cautiously and avoid hazardous activities if impaired.

InfoSynergy

Magnesium Glycinate

Magnesium deficiency can worsen QT-related arrhythmia risk in patients taking QT-affecting antipsychotics.

Recommendation: Correct magnesium deficiency under clinician guidance when QT risk is present.

InfoSynergy

Potassium

Low potassium can increase arrhythmia risk when QT interval is prolonged.

Recommendation: Correct hypokalemia medically; avoid unsupervised potassium in kidney disease or with potassium-retaining drugs.

Search all 4 interaction records for Paliperidone →

Sources

Sources, by evidence tier.

Numbered references. Citations throughout the page link here.

Reviews & position papers

2
  • 1The American Psychiatric Association practice guideline for the treatment of patients with schizophreniaNeeds reviewNo linkAmerican Psychiatric Association · American Journal of Psychiatry · 2020

    Guideline supports systematic monitoring of metabolic, neurologic, and cardiovascular adverse effects during antipsychotic treatment.

  • 2Paliperidone extended-release: a review of its use in schizophreniaNeeds reviewNo linkScott LJ, Figgitt DP · CNS Drugs · 2007

    Review summarizes efficacy, tolerability, and pharmacology of paliperidone ER.

Reference material

1
Keep exploring

Deep dives & adjacent profiles.

ZiprasidonePrescriptionLurasidonePrescriptionRisperidonePrescriptionQuetiapinePrescriptionOlanzapinePrescriptionHaloperidolPrescription

This page is educational. Do not start, stop, or change a supplement or medication based on it without checking with a qualified healthcare professional.

Use this with your stack

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NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.