diazepam vs olanzapine
Side-by-side comparison of diazepam and olanzapine. 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
Diazepam: May potentiate orthostatic hypotension. ( 7.2 ) 7.1 Potential for Other Drugs to Affect Olanzapine Diazepam — The co-administration of diazepam with olanzapine potentiated the orthostatic hypotension observed with olanzapine [see Drug Interactions ( 7.2 )] . Diazepam — Olanzapine did not influence the pharmacokinetics of diazepam or its active metabolite N-desmethyldiazepam.
Recommendation: Move slowly when standing up from a sitting or lying position and report any dizziness to your healthcare provider.
Valium
Zyprexa
Diazepam (Valium) is a medicine that can help with anxiety, muscle spasms, and seizures. It belongs to a class of drugs called benzodiazepines, which work by slowing down the brain.
Olanzapine is a medicine used to treat certain mental disorders. It helps to balance chemicals in the brain to improve mood and behavior.
Diazepam can help manage anxiety disorders or provide short-term relief from anxiety symptoms. It can also relieve symptoms of alcohol withdrawal, such as shaking or agitation. Additionally, diazepam can help with muscle spasms and may be used with other medicines to treat seizures.
Olanzapine is used to treat schizophrenia in adults and teens (13-17). It also treats manic or mixed episodes of bipolar I disorder in adults and teens (13-17). In adults, it can be used with other medicines to treat bipolar depression.
Diazepam works by increasing the effects of a natural chemical in the brain called GABA. GABA helps to calm the brain and nerves. This can reduce anxiety, relax muscles, and prevent seizures.
Olanzapine is an atypical antipsychotic. It works by affecting the levels of certain chemicals in your brain. These chemicals include dopamine and serotonin, which can help improve mood, thinking, and behavior.
- • Drowsiness
- • Fatigue
- • Muscle weakness
- • Uncoordinated movements
- • Dizziness
- • Weight gain
- • Increased appetite
- • Dry mouth
- • Constipation
- Harm from certain substances 9,167
- Misuse of medicine 7,019
- Feeling sick to your stomach 6,144
- Feeling tired 5,714
- Discomfort 5,202
- Weight gain 6,721
- Diabetes 5,388
- The medicine is interacting with another medicine 4,050
- Poisoning from different substances 3,965
- Sleepiness 3,838
Diazepam can be habit-forming and can cause serious side effects, including breathing problems, coma, and even death, especially when taken with opioid pain medicines or alcohol. You should not stop taking diazepam suddenly, as this can cause withdrawal symptoms. Talk to your doctor about how to slowly stop taking diazepam.
Olanzapine can increase the risk of death in older adults with dementia-related psychosis. Olanzapine is not approved to treat this condition. When using olanzapine with fluoxetine, read the Symbyax label for more warnings.
Diazepam may harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is not known if diazepam passes into breast milk, so talk to your doctor before breastfeeding.
If you take olanzapine during the third trimester of pregnancy, your baby may have withdrawal symptoms after birth. There is a pregnancy registry to monitor outcomes in women who take atypical antipsychotics during pregnancy. Talk to your doctor.
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How to Read This diazepam vs olanzapine Comparison
diazepam is classified in the Benzodiazepine drug class, while olanzapine 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, diazepam has 33,246 submissions while olanzapine has 23,962. 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 taking these medicines together can cause a sudden drop in blood pressure when you stand up. this can lead to dizziness or fainting.. 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 diazepam and olanzapine - 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.