# Pregabalin Use in Treatment-Resistant Depression: A Case Report

**Authors:** Devon A McCoy, Sadie R Walter, Matthew Bogoyas

PMC · DOI: 10.7759/cureus.83301 · Cureus · 2025-05-01

## TL;DR

A 57-year-old man with long-term depression improved after adding pregabalin, suggesting it may help treatment-resistant cases.

## Contribution

Pregabalin is proposed as a potential adjunct therapy for treatment-resistant depression based on a clinical case.

## Key findings

- Pregabalin addition led to significant symptom improvement in a TRD patient.
- Standard treatments and therapies were ineffective or poorly tolerated in the patient.
- The case highlights the need for individualized treatment approaches in complex psychiatric cases.

## Abstract

Treatment-resistant depression (TRD) significantly contributes to morbidity and mortality, characterized by persistent depressive symptoms despite comprehensive therapeutic interventions. Standard antidepressants for managing major depressive disorder (MDD) primarily target the serotonin, dopamine, and norepinephrine pathways. Pregabalin, an anxiolytic anticonvulsant, shows promise as an adjunct therapy for TRD. This case report details a 57-year-old male with a 10-year history of MDD who experienced substantial symptom improvement following the addition of pregabalin to his treatment regimen. Previous interventions, including traditional antidepressants, antipsychotics, thyroid supplementation, stimulants, stimulant-like medications, electroconvulsive therapy, and transcranial magnetic stimulation, were either poorly tolerated or ineffective. This case demonstrates pregabalin's potential as an effective adjunct in TRD management and underscores the importance of individualized treatment strategies to optimize outcomes for patients with complex psychiatric and medical needs.

## Linked entities

- **Chemicals:** pregabalin (PubChem CID 4715169)
- **Diseases:** depression (MONDO:0002050), major depressive disorder (MONDO:0002009)

## Full-text entities

- **Diseases:** TRD (MESH:D061218), psychiatric (MESH:D001523), depressive symptoms (MESH:D003866), MDD (MESH:D003865)
- **Chemicals:** Pregabalin (MESH:D000069583), dopamine (MESH:D004298), serotonin (MESH:D012701), norepinephrine (MESH:D009638)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

11 references — full list in the complete paper: https://tomesphere.com/paper/PMC12126151/full.md

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Source: https://tomesphere.com/paper/PMC12126151