buprenorphine (pain) vs gabapentin
Side-by-side comparison of buprenorphine (pain) and gabapentin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Examples: Benzodiazepines and other sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, gabapentinoids (gabapentin or pregabalin),, other opioids, alcohol.
Recommendation: Avoid taking these together unless specifically directed by your doctor. If you must take both, your doctor should use the lowest doses possible and monitor you closely.
Belbuca, Butrans
Neurontin, Gralise
Belbuca is a medicine used to treat severe, long-lasting pain. It contains buprenorphine, a type of opioid pain reliever.
Gabapentin is a medicine that can treat nerve pain and seizures. It works by calming overactive nerves in the body.
Belbuca is used to manage severe, ongoing pain that needs an opioid medicine. It is for pain that cannot be well-treated with other options, like immediate-release opioids. Because of the risks of addiction, abuse, misuse, overdose, and death, Belbuca should only be used if other treatments don't work, aren't tolerated, or aren't enough to manage your pain.
Gabapentin is used to manage nerve pain after shingles in adults. This is called postherpetic neuralgia. It is also used with other medicines to treat partial seizures in adults and children ages 3 and older who have epilepsy.
Belbuca contains buprenorphine, which is a partial opioid agonist. It works by attaching to certain receptors in the brain and body. This helps to decrease the feeling of pain.
Gabapentin affects how nerves send signals to the brain. It is thought to work by decreasing the activity of overexcited nerve cells. This can reduce pain and prevent seizures.
- • Nausea
- • Constipation
- • Headache
- • Vomiting
- • Dizziness
- • Dizziness
- • Sleepiness
- • Swelling in arms and legs
- • Uncoordinated movements
- • Tiredness
No adverse event reports.
- Tiredness 24,395
- Feeling sick to your stomach 21,942
- Aches and discomfort 20,748
- Loose or watery stools 17,456
- Pain in your head 17,287
Belbuca can lead to addiction, abuse, and misuse, which can result in overdose and death. It can also cause serious, life-threatening breathing problems, especially when you first start taking it or after a dose increase. Accidental exposure, especially in children, can be fatal. Taking Belbuca with benzodiazepines (like Xanax or Valium) or other depressants (including alcohol) can cause severe sleepiness, breathing problems, coma, and death. If you are pregnant and use Belbuca for a long time, your baby could have withdrawal symptoms after birth.
This medicine can cause a severe allergic reaction with fever, rash, and organ problems. Stop taking gabapentin and get medical help right away if you have trouble breathing or swelling of your face, lips, tongue, or throat. Do not drive or operate heavy machinery until you know how gabapentin affects you. Do not stop taking gabapentin suddenly, as this may increase seizures. Gabapentin may cause suicidal thoughts or actions. Watch for changes in mood or behavior. Using gabapentin with opioid medicines can cause very slow breathing, sedation, and death. Children ages 3 to 12 may have new or worsening behavior problems.
Using Belbuca for a long time during pregnancy can cause withdrawal symptoms in the newborn. Talk to your doctor if you are pregnant or plan to become pregnant. Breastfeeding is not recommended while using Belbuca.
Gabapentin may cause harm to an unborn baby based on animal studies. If you are pregnant or plan to become pregnant, talk to your doctor. Gabapentin passes into breast milk. The effects on a nursing baby are not known.
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How to Read This buprenorphine (pain) vs gabapentin Comparison
buprenorphine (pain) is classified in the Partial Opioid Agonist drug class, while gabapentin sits within the Anticonvulsant / Nerve Pain Agent class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, buprenorphine (pain) has 0 submissions while gabapentin has 101,828. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to both drugs can slow down your brain and nervous system, which can lead to extreme sleepiness or slowed breathing. this combination increases the risk of dangerous side effects or overdose.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between buprenorphine (pain) and gabapentin - always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.