Abruptly reducing oral baclofen—a common antispasmodic—can trigger a severe withdrawal syndrome that mimics refractory postoperative pain. According to a case study, a 46-year-old woman with paraplegia experienced intense hyperalgesia-like pain, agitation, and rebound spasticity after her baclofen dose was inadvertently reduced by 75% during a transition between healthcare facilities. Restoring her full dosage resolved the symptoms and allowed for a significant reduction in opioid requirements.
The Hidden Risks of Medication Reconciliation Errors
Medication reconciliation failures during transitions of care remain a significant risk for patients on chronic antispasmodic therapy. In the documented case, the patient’s baclofen regimen was incorrectly recorded as 20 mg once daily upon admission for ankle surgery, despite her chronic prescription being 20 mg four times daily. This 75% reduction triggered withdrawal symptoms within 72 hours.
The patient’s clinical presentation included tachycardia, diaphoresis, insomnia, and severe pain disproportionate to her surgical recovery. Because these symptoms were initially attributed to postoperative complications, the patient underwent unnecessary escalation of opioid therapy, receiving 141.25 oral morphine equivalents (OMEs) on her first day of hospital admission. The report highlights the necessity of accurate medication histories, particularly for patients with spinal cord injuries who rely on GABA-B receptor agonists to manage chronic spasticity.
Pro Tip: When managing patients with chronic spasticity, clinicians should prioritize verifying the full daily dose of baclofen rather than relying on current medication lists, which may be truncated during facility transfers.
Differentiating Withdrawal from Postoperative Pain
Identifying baclofen withdrawal is challenging because symptoms overlap with common postoperative issues like infection or surgical site pain. The patient in this case study exhibited “hyperalgesia-like pain”—an intense sensitivity to touch that did not respond to standard pain management, including gabapentin and duloxetine.
| Symptom | Baclofen Withdrawal | Postoperative Recovery |
|---|---|---|
| Spasticity | Rebound, often severe | Stable or expected |
| Pain Sensitivity | Hyperalgesia-like | Localized to surgical site |
| Autonomic State | Tachycardia, diaphoresis | Usually stable |
The clinical team noted that the patient’s severe pain and spasms subsided only after her full 80 mg daily baclofen dose was restored. By the fourth day of her hospital stay, her OME requirements dropped from 117.5 to 75, suggesting that the withdrawal syndrome had been the primary driver of her increased analgesic needs.
Future Trends in Antispasmodic Management
Frequently Asked Questions
What are the most common signs of oral baclofen withdrawal?
Common symptoms include rebound spasticity, muscle rigidity, agitation, insomnia, tachycardia, and autonomic instability. These symptoms typically emerge within 24 to 72 hours of discontinuation or significant dose reduction.
Can baclofen withdrawal cause pain?
Yes. While less documented than other symptoms, recent clinical observations suggest that withdrawal can manifest as severe hyperalgesia-like pain and muscle spasms that are disproportionate to the expected level of surgical recovery.
How can medication errors be prevented during hospital transitions?
Standardized medication reconciliation, where clinicians verify prescriptions with the pharmacy rather than relying on patient recall or potentially outdated electronic records, is essential to preventing accidental dose reductions.
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