Clozapine Blood Level Therapeutic Range

Interpret clozapine trough plasma levels (12h post-dose) targeting 350–600 ng/mL for treatment-resistant schizophrenia, with seizure threshold above 700 ng/mL and toxicity above 1000 ng/mL.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How to Use

Enter the values for the scenario you are assessing. Interpret clozapine trough plasma levels (12h post-dose) targeting 350–600 ng/mL for treatment-resistant schizophrenia, with seizure threshold above 700 ng/mL and toxicity above 1000 ng/mL. Use the clozapine level range result to inform your calculation.

Frequently Asked Questions