Management of Hiccups
For patients presenting with hiccups, treatment should follow a stepwise approach beginning with physical maneuvers, followed by pharmacological therapy with chlorpromazine as the first-line medication for persistent cases. 1
Classification of Hiccups
- Acute hiccups: Less than 48 hours
- Persistent hiccups: More than 48 hours but less than 2 months
- Intractable hiccups: More than 2 months
First-Line Management: Physical Maneuvers
For acute hiccups, try these non-pharmacological interventions first:
- Breath holding for 20-30 seconds
- Drinking water rapidly (from the opposite side of a glass)
- Swallowing granulated sugar
- Pulling on the tongue
- Stimulating the uvula/pharynx
- Larson's maneuver (applying pressure between the posterior border of the mandible and mastoid process)
These techniques work by disrupting the hiccup reflex arc and are recommended as initial management by multiple medical societies 1, 2.
Pharmacological Management
If physical maneuvers fail and hiccups persist beyond 48 hours:
First-Line Medication
- Chlorpromazine: 25-50 mg orally three times daily 1, 3
- FDA-approved specifically for intractable hiccups
- For elderly, debilitated, or emaciated patients, start with lower doses
- If symptoms persist for 2-3 days, increase to 50 mg three times daily
- Monitor for side effects: hypotension, sedation, extrapyramidal symptoms
Alternative Medications (if chlorpromazine is ineffective or contraindicated)
- Baclofen: Particularly effective for central causes of hiccups 1, 4
- Gabapentin: Useful for neuropathic-related hiccups 1, 4
- Metoclopramide: Consider for GI-related hiccups 1, 4
Evaluation for Underlying Causes
Always investigate for underlying causes that may require specific treatment:
- Gastroesophageal reflux disease (most common cause) 5
- Myocardial ischemia
- Central nervous system disorders (stroke, tumors)
- Renal failure
- Medication side effects (steroids, anti-Parkinson drugs, anesthetics)
Treatment Algorithm
For acute hiccups (<48 hours):
- Begin with physical maneuvers
- If unsuccessful and hiccups are bothersome, consider chlorpromazine
For persistent hiccups (>48 hours but <2 months):
- Start chlorpromazine 25 mg three times daily
- If ineffective after 2-3 days, increase to 50 mg three times daily
- Evaluate for underlying causes and treat accordingly
For intractable hiccups (>2 months):
- Consider IV chlorpromazine under careful monitoring
- If medication fails, consider nerve blockade (phrenic or vagal), acupuncture, or nerve stimulation techniques
Special Considerations
- Proton pump inhibitor (PPI) trial: Since GERD is a common cause, an empiric trial of PPI therapy may be appropriate 5
- Medication monitoring: When using chlorpromazine, monitor for QT prolongation, especially if combined with other QT-prolonging medications 6
- Refractory cases: For hiccups that don't respond to standard treatments, consider referral to specialists for nerve blockade or other interventional approaches 1, 4
Common Pitfalls to Avoid
- Failing to identify and treat underlying causes
- Using high doses of chlorpromazine in elderly or debilitated patients
- Not allowing sufficient time for medications to take effect
- Overlooking drug interactions, particularly with QT-prolonging medications
- Dismissing persistent hiccups as merely annoying rather than potentially indicating serious underlying pathology