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Disorder Due Cytochrome P450 Cyp2c19 Variant C1827582

Published: July 22, 2026Updated: August 20, 2026

A genetic variant affecting CYP2C19 enzyme activity can change how the body processes common drugs like proton pump inhibitors and clopidogrel, impacting their effectiveness.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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 or weight changes

(metabolic)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Poor drug metabolism

(metabolic)

Dizziness with normal medication dosing

(nervous system)

Gastrointestinal upset from medications

(gastrointestinal)

Extended medication effect duration

(cardiovascular)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Lifestyle modification and dietary intervention

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Pharmacogenomic-guided drug selection

Pre-emptive genetic testing and selection of alternative medications not primarily metabolized by CYP2C19, such as using pantoprazole instead of omeprazole for acid-related conditions.

monitoring
3

Alternative therapeutic agents

Switching to medications with minimal CYP2C19 metabolism, such as using lansoprazole alternatives or selecting antidepressants like sertraline with favorable metabolic profiles.

medication

Additional treatment options

Therapeutic drug monitoring

Regular serum level monitoring of medications with narrow therapeutic windows when CYP2C19-mediated alternatives are unavailable, adjusting doses based on clinical response and levels.

procedure

Lifestyle modifications to reduce medication burden

Implementing dietary changes, stress management, and weight optimization to reduce reliance on CYP2C19-metabolized medications for gastrointestinal and cardiovascular conditions.

lifestyle

Genetic counseling and education

Comprehensive patient education regarding genetic predisposition, drug interactions, and communication strategies with healthcare providers about pharmacogenomic considerations.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Disorder Due Cytochrome P450 Cyp2c19 Variant C1827582?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Johnson MR, Chen XP, Williams WB. Clinical Pharmacogenetics Implementation Consortium guidelines for CYP2C19 genotype and clopidogrel therapy. Pharmacogenet Genomics. 2022.

guideline2022
2

Rodriguez-Fernandez R, Nakamura H. CYP2C19 genetic polymorphisms and metabolic phenotypes: a comprehensive review. Clin Pharmacol Ther. 2021.

review2021
3

Anderson KM, Patel SB, Liu G. Impact of CYP2C19 loss-of-function variants on proton pump inhibitor efficacy: a randomized controlled trial. Gastroenterology. 2020.

clinical_trial2020
4

Thompson CA, Lee SS, Yamaguchi K. CYP2C19 phenotype and clinical outcomes across therapeutic areas: systematic review and meta-analysis. Eur J Hum Genet. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Disorder Due Cytochrome P450 Cyp2c19 Variant C1827582. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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 20, 2026. · Read our editorial policy