carbamazepine vs quetiapine
Side-by-side comparison of carbamazepine and quetiapine. 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
Quetiapine exposure is increased by the prototype CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, indinavir, ritonavir, nefazodone, etc.) and decreased by the prototype CYP3A4 inducers (e.g., phenytoin, carbamazepine, rifampin, avasimibe, St.
Recommendation: Your doctor may need to increase your quetiapine dose up to five times the original amount to ensure it continues to work.
Tegretol
Seroquel
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.
Quetiapine is a medicine that belongs to a class of drugs called atypical antipsychotics. It is used to treat mental disorders like schizophrenia and bipolar disorder.
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.
Quetiapine is used to treat schizophrenia in adults and teens (13-17 years old). It also treats manic and depressive episodes of bipolar disorder in adults and children (10-17 years old). For bipolar disorder, it can be used alone or with other medicines like lithium or divalproex.
Carbamazepine is an anticonvulsant. It works by reducing the spread of seizure activity in the brain. It also stabilizes nerve impulses to reduce pain.
Quetiapine works by changing the levels of certain natural substances in the brain. These substances are called neurotransmitters. By affecting these neurotransmitters, quetiapine can help reduce symptoms of mental disorders.
- • Dizziness
- • Drowsiness
- • Unsteadiness
- • Nausea
- • Vomiting
- • Feeling sleepy
- • Dry mouth
- • Dizziness
- • Constipation
- • Feeling weak
- Seizure 3,609
- Interaction with another medicine 3,369
- Fall 3,044
- Dizziness 2,860
- Fever 2,690
- Harmful effects from different substances 9,721
- Trouble sleeping 9,103
- Feeling tired 8,861
- Diabetes 8,343
- Weight gain 8,153
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.
Quetiapine may increase the risk of death in elderly patients who have psychosis related to dementia. Quetiapine can also increase the risk of suicidal thoughts and behavior in children, teens, and young adults. Watch for worsening symptoms or suicidal thoughts, and tell your doctor right away.
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.
If you take quetiapine during the last 3 months of pregnancy, your baby may have withdrawal symptoms or other problems after birth. There is a pregnancy registry to track outcomes in women who take quetiapine during pregnancy. Talk to your doctor if you are pregnant or plan to become pregnant.
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How to Read This carbamazepine vs quetiapine Comparison
carbamazepine is classified in the Anticonvulsant drug class, while quetiapine sits within the Atypical Antipsychotic 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, carbamazepine has 15,572 submissions while quetiapine has 44,181. 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 speeds up the process your body uses to get rid of quetiapine. this causes the amount of quetiapine in your system to drop, which may make the drug less effective.. 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 carbamazepine and quetiapine - 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.