Can Subutex Cause Hiccups?
Hiccups are not listed as a recognized side effect of buprenorphine (Subutex) in the FDA drug label, and there is no documented evidence specifically linking buprenorphine to hiccups. 1
Evidence Analysis
FDA Drug Label Review
The official Subutex prescribing information comprehensively lists warnings, precautions, and adverse effects including:
- CNS depression
- Respiratory depression
- Hepatic events
- Allergic reactions (rashes, hives, pruritus, bronchospasm, angioedema, anaphylaxis)
- Orthostatic hypotension
- Miosis and altered consciousness
- Opioid withdrawal effects
Hiccups are notably absent from this extensive list of documented adverse effects 1.
Opioid Class Effect Consideration
While buprenorphine is a partial mu-opioid agonist, the research evidence shows that hiccups have been reported with other opioids including:
- Morphine 2, 3
- Codeine 4
- Hydromorphone 4
- Hydrocodone 5
- Fentanyl (though one patient tolerated it after hiccups with other opioids) 4
However, buprenorphine is pharmacologically distinct from full opioid agonists due to its partial agonist properties and ceiling effect on mu-receptor activation 1. This fundamental difference may explain why hiccups—if they occur with full agonists—have not been documented with buprenorphine specifically.
Literature Gap
A 1997 systematic review concluded there was "insufficient evidence for any drug to be considered causative in the etiology of hiccups" 6. More recent case reports (2023-2025) document opioid-induced hiccups but none involve buprenorphine 2, 4.
Clinical Implications
If a patient on Subutex develops hiccups:
- Consider alternative etiologies first: gastroesophageal reflux, gastric distension, CNS lesions, metabolic disturbances, or other medications
- Review concomitant medications: particularly benzodiazepines, antipsychotics, antiemetics, or NSAIDs which may interact with opioids to cause hiccups 5
- Evaluate for withdrawal: if buprenorphine dosing is inadequate, withdrawal symptoms could theoretically include hiccups
- Do not automatically attribute hiccups to buprenorphine given the absence of documented cases
Bottom Line
Based on FDA labeling and available literature, buprenorphine (Subutex) should not be considered a cause of hiccups. If hiccups occur in a patient taking Subutex, investigate other causes rather than assuming a drug-related etiology.