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Living with Folinic acid-responsive seizures

A very rare newborn seizure condition that starts within days of birth and responds to folinic acid.

Understanding Folinic acid-responsive seizures

Folinic acid-responsive seizures is a very rare newborn brain condition with seizures that respond to folinic acid.

Babies have jerking (myoclonic and clonic) seizures along with pauses in breathing (apnea), usually from several hours to 5 days after birth. Other findings can include developmental delay, poor coordination, and changes in the brain's myelin (the coating on nerves).

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Seizures in the first days of life
  • Pauses in breathing (apnea)
  • Breathing difficulties
  • Developmental delay
  • Poor coordination (ataxia)
  • Behavior differences or autistic behavior

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists, genetic specialists and seizure and epilepsy specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: Epilepsy Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Epilepsy Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can a trial of folinic acid be used to help control seizures?
Is genetic testing available to find the cause?
How should development be monitored?

Quick facts

Symptoms usually startNewborn and as an Infant

Changes in genes cause it. GARD doesn't name a gene or describe how it is inherited.

GeneticNeurologicalInherited Metabolic

Also known as: folinic acid responsive developmental and epileptic encephalopathy; folinic acid responsive seizures

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Folinic acid-responsive seizuresGARD ID 18938 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Folinic acid-responsive seizures.

Explore the Folinic acid-responsive seizures blog

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Explore actively recruiting Folinic acid-responsive seizures studies with HealthSpark.

HealthSpark

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