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buprenorphine (pain) vs butorphanol

Side-by-side comparison of buprenorphine (pain) and butorphanol. 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: butorphanol, nalbuphine, pentazocine Muscle Relaxants Clinical Impact: Buprenorphine may enhance the neuromuscular blocking action of skeletal muscle relaxants and produce an increased degree of respiratory depression.

Recommendation: Your doctor should monitor you for slow breathing and may need to adjust your treatment plan.

Drug Class
buprenorphine (pain) Partial Opioid Agonist
butorphanol Opioid Agonist-Antagonist
Type
buprenorphine (pain) Prescription
butorphanol Prescription
Summary
buprenorphine (pain)

Belbuca is a medicine used to treat severe, long-lasting pain. It contains buprenorphine, a type of opioid pain reliever.

butorphanol

Butorphanol nasal spray is a strong pain medicine. It is used when other pain medicines are not strong enough or cannot be tolerated.

What It Treats
buprenorphine (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.

butorphanol

This medicine treats severe pain that requires an opioid pain reliever. It is for use when other pain treatments are not strong enough or cannot be tolerated. Do not use this medicine for a long time unless your pain is still severe and other treatments are still not adequate.

How It Works
buprenorphine (pain)

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.

butorphanol

Butorphanol is an opioid agonist-antagonist. It works by changing how your brain and nervous system respond to pain. It attaches to certain receptors in the brain to reduce pain signals.

Common Side Effects
buprenorphine (pain)
  • Nausea
  • Constipation
  • Headache
  • Vomiting
  • Dizziness
butorphanol
  • Sleepiness
  • Dizziness
  • Nausea
  • Vomiting
  • Nasal congestion
FAERS Reports
buprenorphine (pain)

No adverse event reports.

butorphanol
  • Allergic reaction to the drug 48
  • Feeling sick to your stomach 25
  • Head pain 16
  • Discomfort 16
  • Itching 16
Serious Warnings
buprenorphine (pain)

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.

butorphanol

This medicine has serious warnings. It can cause addiction, abuse, and misuse, which can lead to overdose and death. It can also cause life-threatening breathing problems, especially when you first start using it or after a dose increase. Accidental use, even one dose, can cause a fatal overdose, especially in children. Using this medicine with benzodiazepines or other drugs that can make you sleepy, including alcohol, can cause serious problems, including coma and death. If you use this medicine for a long time during pregnancy, it can cause withdrawal symptoms in the newborn that could be life-threatening if not treated.

Pregnancy
buprenorphine (pain)

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.

butorphanol

If you need to use this medicine for a long time during pregnancy, it can cause withdrawal symptoms in your newborn. Make sure a newborn specialist is available when you deliver your baby.

Also Compare, Nearby Drugs

Compare buprenorphine (pain) with

Compare butorphanol with

How to Read This buprenorphine (pain) vs butorphanol Comparison

buprenorphine (pain) is classified in the Partial Opioid Agonist drug class, while butorphanol sits within the Opioid Agonist-Antagonist 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 butorphanol has 121. 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 these medicines can work together to slow your breathing and make your muscles very weak. this increases the risk of serious breathing problems.. 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 butorphanol - 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.