buprenorphine vs mirtazapine
Side-by-side comparison of buprenorphine and mirtazapine. 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 (MAO) inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue).
Recommendation: Your healthcare provider should monitor you closely for signs of serotonin syndrome if these drugs are used together.
Subutex, Sublocade
Remeron
Buprenorphine sublingual tablets help treat opioid dependence. It should be part of a full treatment plan with counseling and support.
Mirtazapine is a medicine used to treat depression in adults. It can help improve your mood and energy levels.
This medicine treats opioid dependence. Opioid dependence means you feel like you need to take opioids. This medicine can help you manage withdrawal symptoms and reduce cravings.
Mirtazapine is used to treat major depressive disorder (MDD) in adults. This condition can cause you to feel sad, lose interest in activities, and have trouble with sleeping or eating. Mirtazapine can help improve these symptoms.
Buprenorphine is a partial opioid agonist. This means it binds to the same receptors in the brain as opioids, but it does not activate them as strongly. This helps to reduce cravings and withdrawal symptoms without causing the same high as other opioids.
Mirtazapine works by affecting certain chemicals in the brain called neurotransmitters. It helps to increase the levels of norepinephrine and serotonin. These chemicals can help improve mood and reduce symptoms of depression.
- • Headache
- • Nausea
- • Vomiting
- • Sweating
- • Constipation
- • Feeling sleepy
- • Increased appetite
- • Weight gain
- • Dizziness
- Death 13,279
- Drug dependence 12,452
- Overdose 10,911
- Harmful effect from a substance 10,722
- Pain 8,157
- Feeling sick to your stomach 4,838
- Feeling tired 4,714
- Accidentally falling down 4,026
- Loose or watery stools 3,961
- Harm from different substances 3,705
Buprenorphine can be abused, like other opioids. Taking buprenorphine with benzodiazepines or other depressants can cause serious breathing problems, coma, or death. Keep this medicine out of the reach of children, as it can cause severe breathing problems and death. Using opioids for a long time during pregnancy can cause withdrawal symptoms in the newborn.
Antidepressants may increase the risk of suicidal thoughts and behaviors in young adults. Your doctor should closely watch you for worsening depression or suicidal thoughts. Mirtazapine is not approved for use in children.
If you are pregnant or plan to become pregnant, talk to your doctor. Using this medicine during pregnancy can cause withdrawal symptoms in your baby after birth. Buprenorphine can pass into breast milk.
Tell your doctor if you are pregnant or plan to become pregnant. Mirtazapine should be used during pregnancy only if clearly needed. Talk to your doctor if you are breastfeeding.
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How to Read This buprenorphine vs mirtazapine Comparison
buprenorphine is classified in the Partial Opioid Agonist drug class, while mirtazapine sits within the Noradrenergic and Specific Serotonergic Antidepressant (NaSSA) 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 has 55,521 submissions while mirtazapine has 21,244. 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 medications both affect the serotonin system, and taking them together can lead to a dangerous buildup of this chemical in your body.. 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 and mirtazapine - 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.