Tacrolimus CYP3A5 Genotype Dose Calculator

Determine tacrolimus starting dose by CYP3A5 expressers vs non-expressers in solid organ transplant. Expressers require 1.5-2x higher initial dose.

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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. Determine tacrolimus starting dose by CYP3A5 expressers vs non-expressers in solid organ transplant. Expressers require 1.5-2x higher initial dose. Use the tacrolimus cyp3a5 result to inform your calculation.

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