clonazepam vs lamotrigine
Side-by-side comparison of clonazepam and lamotrigine. 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
Cytochrome P450 inducers, such as phenytoin, carbamazepine, lamotrigine, and phenobarbital induce clonazepam metabolism, causing an approximately 38% decrease in plasma clonazepam levels.
Recommendation: Your doctor may need to adjust your clonazepam dose to ensure the medicine stays effective.
Klonopin
Lamictal
Clonazepam is a medicine that belongs to the benzodiazepine class. It is used to treat seizure disorders and panic disorder.
Lamotrigine is a medicine that can treat seizures and bipolar disorder. It works by reducing irregular electrical activity in the brain.
Clonazepam is used to treat certain seizure disorders, including Lennox-Gastaut syndrome, akinetic, and myoclonic seizures. It can also treat absence seizures when other medicines don't work. Clonazepam also treats panic disorder, which involves unexpected panic attacks and worry about having more attacks.
Lamotrigine can treat epilepsy in adults and children 2 years and older. It can help with partial-onset seizures, primary generalized tonic-clonic seizures, and generalized seizures of Lennox-Gastaut syndrome. It can also be used to delay mood episodes in adults with bipolar I disorder.
Clonazepam works by affecting chemicals in your brain that may be unbalanced. It enhances the effects of a natural brain chemical called GABA. This helps to reduce seizures and relieve panic symptoms.
Lamotrigine affects how nerves in the brain send signals to each other. It is thought to work by decreasing the release of certain chemicals. This helps to stabilize electrical activity and prevent seizures or mood swings.
- • Drowsiness
- • Problems with coordination
- • Dizziness
- • Headache
- • Double vision
- • Uncoordinated movements
- • Nausea
- Tiredness 10,238
- Feeling sick to your stomach 9,567
- Worry or nervousness 8,735
- Head pain 8,596
- Feeling sad or hopeless 8,123
- Skin rash 8,408
- Seizure 6,527
- Feeling sick to your stomach 6,151
- Tiredness 5,914
- Feeling lightheaded 5,771
Taking clonazepam with opioid medicines can cause very serious problems, including slowed breathing, coma, and death. Only take these medicines together if there are no other options. Clonazepam can be habit-forming, leading to abuse, misuse, and addiction, which can result in overdose or death. Stopping clonazepam suddenly can cause dangerous withdrawal symptoms. Your doctor will slowly lower your dose to prevent withdrawal.
Lamotrigine can cause a serious skin rash that may require you to go to the hospital. This rash can be life-threatening. The risk is higher in children. Stop taking lamotrigine and see a doctor right away if you get a rash, fever, or swollen lymph nodes.
Clonazepam may harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. Clonazepam can pass into breast milk and may harm a nursing infant.
Tell your doctor if you are pregnant or plan to become pregnant. Lamotrigine may cause harm to an unborn baby. There is a pregnancy registry for women who take lamotrigine during pregnancy. You can enroll by calling 1-888-233-2334.
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How to Read This clonazepam vs lamotrigine Comparison
clonazepam is classified in the Benzodiazepine drug class, while lamotrigine 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, clonazepam has 45,259 submissions while lamotrigine has 32,771. 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 lamotrigine speeds up the process of clearing clonazepam from your body. this results in lower levels of clonazepam in your bloodstream.. 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 clonazepam and lamotrigine - 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.