bupropion vs carbamazepine

PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.

Side-by-side comparison of bupropion and carbamazepine. 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

7 DRUG INTERACTIONS CYP2B6 inducers: Dose increase may be necessary if coadministered with CYP2B6 inducers (e.g., ritonavir, lopinavir, efavirenz, carbamazepine, phenobarbital, and phenytoin) based on clinical exposure, but should not exceed the maximum recommended dose. Carbamazepine, Phenobarbital, Phenytoin: While not systemically studied, these drugs may induce metabolism of bupropion and may decrease bupropion exposure [see Clinical Pharmacology (12.3) ].

Drug Class
bupropion Norepinephrine-Dopamine Reuptake Inhibitor (NDRI)
carbamazepine Anticonvulsant
Type
bupropion Prescription
carbamazepine Prescription
Summary
bupropion

Bupropion is a medicine used to treat depression and prevent seasonal affective disorder (SAD). It can help improve your mood and energy levels.

carbamazepine

Carbamazepine is a medicine used to control seizures and treat nerve pain. It works by reducing abnormal electrical activity in the brain and calming nerve signals.

What It Treats
bupropion

Bupropion is used to treat major depressive disorder (MDD), which can cause you to feel sad, lose interest in activities, and have trouble sleeping or eating. It is also used to prevent seasonal affective disorder (SAD), a type of depression that occurs during the fall and winter.

carbamazepine

Carbamazepine is used to treat certain types of seizures, including partial seizures and generalized tonic-clonic seizures. It can also treat mixed seizure patterns. Carbamazepine also treats the pain from trigeminal neuralgia, a nerve disorder that causes intense facial pain. It is also sometimes used for glossopharyngeal neuralgia.

How It Works
bupropion

Bupropion works by affecting certain chemicals in the brain called norepinephrine and dopamine. It helps to increase the levels of these chemicals, which can improve mood and reduce symptoms of depression.

carbamazepine

Carbamazepine is an anticonvulsant. It works by reducing the spread of seizure activity in the brain. It also stabilizes nerve impulses to reduce pain.

Common Side Effects
bupropion
  • Dry mouth
  • Nausea
  • Trouble sleeping
  • Dizziness
  • Sore throat
carbamazepine
  • Dizziness
  • Drowsiness
  • Unsteadiness
  • Nausea
  • Vomiting
FAERS Reports
bupropion
  • Completed Suicide 4,408
  • Toxicity To Various Agents 3,113
  • Fatigue 2,665
  • Nausea 2,309
  • Headache 2,218
carbamazepine
  • Seizure 3,609
  • Drug Interaction 3,369
  • Fall 3,044
  • Dizziness 2,862
  • Pyrexia 2,689
Serious Warnings
bupropion

Antidepressants may increase the risk of suicidal thoughts and behaviors in children, teenagers, and young adults. Watch closely for worsening depression or suicidal thoughts. Tell your doctor right away if you notice any changes in mood or behavior.

carbamazepine

Carbamazepine can cause severe skin reactions, including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), which can be fatal. If you are of Asian descent, you may need a blood test before starting this medicine. Carbamazepine can also cause serious blood problems like aplastic anemia and agranulocytosis. Contact your doctor right away if you develop a fever, sore throat, rash, or unusual bleeding or bruising.

Pregnancy
bupropion

Talk to your doctor if you are pregnant or plan to become pregnant. It is important to consider the risks of untreated depression during pregnancy. There is a pregnancy registry to monitor outcomes in women exposed to antidepressants during pregnancy. You can register by calling 1-844-405-6185.

carbamazepine

Carbamazepine may harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is not known if carbamazepine passes into breast milk, so talk to your doctor about breastfeeding.

Also Compare, Nearby Drugs

How to Read This bupropion vs carbamazepine Comparison

bupropion is classified in the Norepinephrine-Dopamine Reuptake Inhibitor (NDRI) drug class, while carbamazepine sits within the Anticonvulsant 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, bupropion has 14,713 submissions while carbamazepine has 15,573. 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 carbamazepine makes your body break down bupropion faster, which can lower the amount of medicine in your blood.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for bupropion or carbamazepine.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.