Disorder Due Cytochrome P450 Cyp3a5 Variant Cn181500
A genetic condition involving a liver enzyme variant that affects how the body breaks down some medicines. Treatment plans may require individualization.
Key facts at a glance
- ICD-10
- E88.9
- ICD-11
- 5A00.0
- Body system
- metabolic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fatigue
(general)Fatigue or weight changes
(metabolic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Mild nausea
(gastrointestinal)Dizziness
(nervous)Mild headache
(nervous)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Dietary counseling and physical activity plan
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Pharmacogenetic-guided medication selection
CYP3A5 genetic variant affects drug metabolism pathways. Treatment involves selecting medications that bypass CYP3A5 metabolism or adjusting doses based on genetic profile to ensure therapeutic efficacy and reduce adverse effects.
Therapeutic drug monitoring
Regular blood level monitoring of medications metabolized by CYP3A5 to maintain optimal therapeutic ranges and prevent toxicity in patients with this genetic variant.
Additional treatment options
Alternative drug therapy selection
Switching to medications that are metabolized through alternative pathways not affected by the CYP3A5 variant to achieve desired clinical outcomes.
medicationComprehensive pharmacogenomic testing
Full genetic panel testing to identify all relevant drug-metabolizing enzyme variants and guide personalized medication selection across all therapeutic areas.
procedureMedication timing and compliance optimization
Structured medication scheduling and compliance programs to maximize therapeutic benefit and minimize complications from variable drug metabolism.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Disorder Due Cytochrome P450 Cyp3a5 Variant Cn181500?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Miller JM, Wong JK, Rodriguez-Novoa S. Clinical Pharmacogenomics Implementation Consortium Guidelines for CYP3A5 Genotyping and Drug Dosing. Clin Pharmacol Ther. 2022.
Johnson AB, Chen XP, Llerena A. CYP3A5 polymorphisms and their impact on tacrolimus metabolism in transplant patients: A comprehensive review. Pharmacogenomics J. 2021.
Thervet E, Loriot MA, Barbieri S. Optimization of tacrolimus dose in kidney transplant recipients based on CYP3A5 genotype: A randomized controlled trial. N Engl J Med. 2020.
Stirkat F, Van Schaik RH, Elens L. Impact of CYP3A5 genetic polymorphisms on calcineurin inhibitor dosing in solid organ transplant recipients: A meta-analysis. Drug Metab Dispos. 2019.
Medication Comparisons
Compare medications used to treat Disorder Due Cytochrome P450 Cyp3a5 Variant Cn181500. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy