Related Experiment Video
Updated: Dec 9, 2025

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Venlafaxine-induced encephalopathy in term newborn
Walid M Maalouli1, Brian S Hilliard1
1Division of Pediatric Hospital Medicine, Department of Pediatrics, Masonic Children's Hospital, University of Minnesota, Minneapolis, MN, USA.
Selective serotonin and norepinephrine reuptake inhibitor (SSNRI) venlafaxine use during pregnancy may cause neonatal abstinence syndrome in newborns. This case highlights the risk and suggests a management framework for exposed infants.
Area of Science:
- Neonatal Medicine
- Pharmacology
- Neuroscience
Background:
- Selective serotonin and norepinephrine reuptuptake inhibitors (SNRIs) like venlafaxine are increasingly prescribed for depression in women of childbearing age.
- In utero exposure to venlafaxine has been anecdotally linked to neonatal encephalopathy, mimicking neonatal abstinence syndrome (NAS).
Observation:
- A case report details a 5-day-old infant exposed to venlafaxine throughout gestation.
- The infant presented with hypothermia, poor feeding, and reduced activity, with a negative sepsis workup.
Findings:
- The infant required two weeks of nasogastric tube feeding but showed spontaneous recovery without long-term sequelae.
- This case underscores the potential for significant venlafaxine withdrawal symptoms in neonates.
Implications:
- Highlights the non-trivial risks of in utero venlafaxine exposure.
- Emphasizes the need for vigilant observation of neonates exposed to venlafaxine.
- Proposes a management framework for clinical practice concerning these infants.
Related Concept Videos
Antiepileptic Drugs: Potassium Channel Activators
Ezogabine has gained approval as an adjunctive treatment...
Teratogenicity
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
A study on guinea pigs examined the...
Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
Antiepileptic Drugs: GABAergic Pathway Potentiators
The key GABA pathway potentiators used in epilepsy management are as follows.
Benzodiazepines are a well-known class of drugs used for...
Epilepsy and Seizures: Overview
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...

