buprenorphine (pain) vs cyclobenzaprine
Side-by-side comparison of buprenorphine (pain) and cyclobenzaprine. 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: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), certain muscle relaxants (i.e., cyclobenzaprine, metaxalone), monoamine oxidase inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue). Examples: cyclobenzaprine, metaxalone Diuretics Clinical Impact: Opioids can reduce the efficacy of...
Recommendation: Use this combination with caution and report any muscle stiffness or fever to your doctor immediately.
Belbuca, Butrans
Flexeril, Amrix
Belbuca is a medicine used to treat severe, long-lasting pain. It contains buprenorphine, a type of opioid pain reliever.
Cyclobenzaprine is a muscle relaxant. It helps relieve muscle spasms and pain.
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.
This medicine treats muscle spasms caused by painful conditions. It is meant to be used with rest and physical therapy. It should only be used for a short time, usually 2 to 3 weeks.
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.
Cyclobenzaprine works in the brain and spinal cord to relax your muscles. It reduces muscle spasms, which helps to relieve pain and improve movement. It does not directly work on the muscles themselves.
- • Nausea
- • Constipation
- • Headache
- • Vomiting
- • Dizziness
- • Drowsiness
- • Dry mouth
- • Fatigue
- • Headache
No adverse event reports.
- Pain 4,873
- Tiredness 3,808
- Feeling sick to your stomach 3,304
- Headache 3,292
- Long-term kidney problems 2,749
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.
You should not take this medicine if you are allergic to any of its ingredients. You should not take this medicine if you are taking a monoamine oxidase (MAO) inhibitor or have taken one in the past 14 days. Taking cyclobenzaprine with an MAO inhibitor can cause serious problems, including seizures and death. Also, do not take it if you have heart problems or an overactive thyroid.
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.
It is not known if cyclobenzaprine can harm an unborn baby. Talk to your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
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How to Read This buprenorphine (pain) vs cyclobenzaprine Comparison
buprenorphine (pain) is classified in the Partial Opioid Agonist drug class, while cyclobenzaprine sits within the Muscle Relaxant 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 cyclobenzaprine has 18,026. 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 this muscle relaxant and the pain medication both raise serotonin levels. using them at the same time can cause a toxic reaction in your nervous system.. 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 cyclobenzaprine - 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.