Substance / Medication

Primidone

Overview

Active Ingredient
primidone
RxNorm CUI
8691

Indications

Primidone tablets used alone or concomitantly with other anticonvulsants, are indicated in the control of grand mal, psychomotor, and focal epileptic seizures. It may control grand mal seizures refractory to other anticonvulsant therapy.

Labeler: AvKAREUpdated: 2026-01-14T00:00:00.000ZFull label on DailyMed

Contraindications

When this intervention should not be used

Primidone is contraindicated in: 1) patients with porphyria and 2) patients who are hypersensitive to phenobarbital CLINICAL PHARMACOLOGY (see).

Indications & Related Conditions

Conditions associated via SNOMED clinical relationships

Administration & Protocol

Dosing, route, and treatment protocol

Detailed dosage and administration information is available in the full FDA drug label.

View full prescribing information on DailyMed

Monitoring & Follow-Up

Biomarkers relevant to this intervention via related conditions

No monitoring biomarkers have been mapped yet. Biomarker-intervention linkages are derived through related conditions and will expand as the knowledge graph grows.

Clinical Trials

91 trials linked to this intervention

91
Total Trials
16
Recruiting
33
With Results

Research Evidence

Published studies and systematic reviews

Sort:
Primidone is associated with interictal depression in patients with epilepsy.
Lopez-Gomez M, Ramirez-Bermudez J, Campillo C et al. · Epilepsy Behav · 2005
PMID: 15820351Trial
Randomized trial comparing primidone initiation schedules for treating essential tremor.
O'Suilleabhain Padraig, Dewey Richard B · Mov Disord · 2002
PMID: 11921128Trial

Research data from MEDLINE/PubMed

Benefits & Expected Outcomes

Benefits, expected outcomes, efficacy data, and NNT (Number Needed to Treat) are pending physician authorship and evidence review.

Risks & Side Effects

Adverse reaction and safety data for this drug is sourced from the FDA-approved label.

View adverse reactions & drug interactions on DailyMed

Related Symptoms

Symptoms associated with conditions this intervention addresses

No related symptoms have been mapped yet. Symptom linkages are derived through associated conditions.

Alternatives & Comparisons

Alternative treatments, comparison data, and clinical decision support are pending physician authorship.

Medical Disclaimer

This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider regarding any medical condition or treatment plan.

Do not start, stop, or change any treatment without consulting your healthcare provider.

Quick Facts

Type
Substance / Medication
Fully Specified Name
Primidone (substance)
SNOMED CT
387256009
UMLS CUI
C0033148
RxNorm CUI
8691
Labeler
AvKARE

Clinical Data

This intervention maps to 3 entities in the Ltrl knowledge graph.

3
Conditions
0
Biomarkers
0
Specialists
0
Symptoms
91
Clinical Trials

Data is sourced from SNOMED CT, UMLS, and the Ltrl clinical knowledge graph. Content sections marked as pending require physician authorship. Consult a healthcare provider before starting any treatment.