Antipsychotic Dose Equivalence Calculator
Convert antipsychotic doses using chlorpromazine equivalents.
Antipsychotic Dose Equivalence Form
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Understanding Your Results
Antipsychotic dose equivalences are approximate and derived from chlorpromazine 100 mg as a standard. Receptor-binding profiles differ between agents, so clinical effects may not be identical even at equivalent doses. Switching should be done cautiously with close monitoring.
| Drug | Approx. CPZ Equivalent (mg) |
|---|---|
| Chlorpromazine | 100 |
| Haloperidol | 2 |
| Risperidone | 2 |
| Olanzapine | 5 |
| Quetiapine | 75 |
| Ziprasidone | 40 |
| Aripiprazole | 7.5 |
| Paliperidone | 3 |
| Lurasidone | 40 |
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Frequently Asked Questions
What is this calculator used for?
This calculator helps estimate clinical values, risks, or dosing based on validated formulas and guidelines.
How accurate are the results?
Results are estimates and should always be confirmed with clinical judgment and appropriate testing.
Can I use this for pediatric patients?
Follow the specific calculator instructions. Some tools are pediatric-specific, while others are for adults only.
When should I contact a doctor?
Always consult a healthcare provider for abnormal results, worsening symptoms, or if you are unsure about next steps.