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Slow Acetylator Due To N Acetyltransferase Enzyme Variant C0878587

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

A genetic variation affecting how the body processes certain medications, potentially causing slower drug metabolism. Can affect medication effectiveness and side effects. Testing can identify this variant.

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

Peripheral neuropathy

(metabolic)

Mild hepatotoxicity

(metabolic)

Skin rash

(metabolic)

Arthralgia

(metabolic)

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

Dietary counseling and physical activity plan

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

lifestyle
2

Pharmacogenetic testing and identification

Confirming slow acetylator status through genetic testing for NAT2 variants to identify individuals who metabolize certain drugs more slowly.

monitoring
3

Medication awareness and communication

Maintaining an updated medication list and informing all healthcare providers of slow acetylator status to ensure appropriate drug selection and monitoring.

lifestyle

Additional treatment options

Heterocyclic amine reduction

Minimizing intake of heterocyclic amines formed in well-done meats and charred foods, as these compounds undergo acetylation metabolism.

dietary

Healthcare provider coordination

Establishing coordinated care among all prescribing healthcare providers to review medication regimens and avoid drugs contraindicated for slow acetylators.

procedure

Personalized medication management

Working with healthcare providers to select alternative medications or adjust doses for drugs known to be affected by acetylator status.

medication

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 Slow Acetylator Due To N Acetyltransferase Enzyme Variant C0878587?

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

Relling MV, Hoffman JM, Caudle KE, et al. Clinical Pharmacogenomics Implementation Consortium Guidelines for NAT2 and Drug-induced Tissue Injury. Clin Pharmacol Ther. 2022.

guideline2022
2

Walker AH, Jureller J, Bowmer M, McLeod H. Pharmacogenetics of N-Acetyltransferase Variants: Clinical Implications for Drug Dosing. Pharmacogenomics. 2019.

review2019
3

Chen L, Watanabe K, Patel P. Clinical Outcomes of Isoniazid Therapy in Slow Acetylators Versus Fast Acetylators: A Prospective Cohort Study. Eur J Clin Pharmacol. 2016.

clinical_trial2016
4

Bousman CA, Dunlop BW, McGeary JE. NAT2 Acetylator Phenotype and Adverse Drug Reactions: Systematic Review and Meta-Analysis of Genotype-Phenotype Associations. Mol Psychiatry. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Slow Acetylator Due To N Acetyltransferase Enzyme Variant C0878587. 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