Gabapentin Side Effects in Elderly Patients: What You Need to Know
Published on November 26, 2024
Key Takeaway
Gabapentin can cause significant side effects in elderly patients, including dizziness, drowsiness, and cognitive impairment, necessitating careful monitoring and potential dose adjustments.
Introduction
Gabapentin is a widely prescribed medication used to treat various conditions, including neuropathic pain, epilepsy, and restless leg syndrome. While it's generally considered safe, elderly patients may be more susceptible to certain side effects. This article explores the potential risks and management strategies for gabapentin use in older adults.
Common Side Effects in Elderly Patients
Elderly patients taking gabapentin may experience several side effects, some of which can be more pronounced compared to younger adults:
- Dizziness and unsteadiness
- Drowsiness and fatigue
- Cognitive impairment
- Peripheral edema
- Gastrointestinal issues
According to a study by Gupta et al. (2013), the most common adverse events in patients aged 75 and older were dizziness (12.0%), nausea (5.4%), and somnolence (5.0%).

Cognitive Effects and Fall Risk
One of the most significant concerns for elderly patients taking gabapentin is the increased risk of falls due to dizziness and unsteadiness. Fleet et al. (2018) found that initiation of high-dose gabapentin was associated with a higher risk of hospitalization with altered mental status in older adults.
Drug Interactions and Dosage Considerations
Elderly patients often take multiple medications, increasing the risk of drug interactions. Gabapentin may interact with other central nervous system depressants, potentially exacerbating side effects. Conway et al. (2017) observed substantial intrapatient variability in gabapentin concentrations in elderly patients with epilepsy, suggesting the need for careful dosing and monitoring.
Managing Side Effects in Elderly Patients
To minimize the risk of adverse effects in elderly patients:
- Start with a low dose and titrate slowly
- Monitor for signs of cognitive impairment and falls
- Regularly assess kidney function, as gabapentin is primarily excreted by the kidneys
- Consider alternative treatments if side effects persist
- Educate patients and caregivers about potential side effects

Conclusion
While gabapentin can be an effective treatment for various conditions in elderly patients, it's crucial to weigh the benefits against the potential risks. Close monitoring, appropriate dosing, and patient education are essential for safe and effective use of gabapentin in this vulnerable population. Always consult with a healthcare provider before making any changes to medication regimens.