clonazepam vs valproate

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Side-by-side comparison of clonazepam and valproate. 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

Clonazepam The concomitant use of valproate and clonazepam may induce absence status in patients with a history of absence type seizures.

Drug Class
clonazepam Benzodiazepine
valproate Anticonvulsant / Mood Stabilizer
Type
clonazepam Prescription
valproate Prescription
Summary
clonazepam

Clonazepam is a medicine that belongs to the benzodiazepine class. It is used to treat seizure disorders and panic disorder.

valproate

Valproate sodium injection is used when you cannot take valproate pills. It helps control seizures.

What It Treats
clonazepam

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.

valproate

This medicine treats certain types of seizures. It can be used alone or with other medicines to treat complex partial seizures. It also treats simple and complex absence seizures, and multiple seizure types that include absence seizures.

How It Works
clonazepam

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.

valproate

Valproate affects the levels of certain chemicals in your brain. These chemicals help to control seizures. This medicine helps to reduce the frequency of seizures.

Common Side Effects
clonazepam
  • Drowsiness
  • Problems with coordination
valproate
  • Headache
  • Dizziness
  • Nausea
  • Pain at the injection site
FAERS Reports
clonazepam
  • Fatigue 10,236
  • Nausea 9,564
  • Anxiety 8,735
  • Headache 8,590
  • Depression 8,121
valproate
  • Drug Interaction 1,185
  • Foetal Exposure During Pregnancy 1,043
  • Somnolence 950
  • Epilepsy 813
  • Toxicity To Various Agents 757
Serious Warnings
clonazepam

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.

valproate

Valproate can cause life-threatening liver problems, especially in the first 6 months of treatment. Children under 2 and people with mitochondrial disorders have a higher risk. Valproate can also harm an unborn baby, causing birth defects and lower IQ. It can also cause pancreatitis, which can be fatal.

Pregnancy
clonazepam

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.

valproate

Valproate can cause serious birth defects if taken during pregnancy. Do not take this medicine if you are pregnant or plan to become pregnant unless other medicines don't work for you. There is a pregnancy registry for women who take valproate during pregnancy; call 1-888-233-2334 to enroll.

Also Compare, Nearby Drugs

How to Read This clonazepam vs valproate Comparison

clonazepam is classified in the Benzodiazepine drug class, while valproate sits within the Anticonvulsant / Mood Stabilizer 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 45,246 submissions while valproate has 4,748. 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 combining these two medications can trigger a long-lasting seizure state called absence status in patients who have had these types of seizures before.. 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 clonazepam or valproate.

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