Last reviewed: July 23, 2026 Last updated: July 23, 2026

Written by: Jay Hastings, CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

This article is part of the PlexusDx Education Hub — your resource for evidence-based guidance on precision health. Browse all Precision Health education

Precision medicine aims to tailor care to the individual, and diabetes is one area where genetics is part of the discussion. Pharmacogenomics — PGx — studies how genes affect medication metabolism, one thread within the broader precision-medicine picture. This article explains where PGx fits in diabetes care and how it differs from the PlexusDx Precision Peptide Genetic Test.

Precision Medicine and Diabetes

Diabetes care is individualized by clinicians using labs, history, lifestyle, and response to therapy. Precision-medicine tools, including genetic information where a provider chooses to use it, are additional inputs — not replacements for clinical management.

Where Pharmacogenomics Comes In

Some medications used in metabolic and cardiovascular care are metabolized by enzymes coded by variable genes such as CYP2C19. Pharmacogenomic testing, ordered and interpreted by a clinician, can inform how certain of those drugs may be processed for the medications a given test covers.

What These Tools Cannot Do

No genetic test manages diabetes on its own or replaces professional care. PGx informs specific medication questions; it does not set a treatment plan. Never change a medication based on a genetic result alone.

How PGx Differs From the Precision Peptide Genetic Test

This distinction matters, and PlexusDx states it plainly: PlexusDx does not sell or offer a pharmacogenomic (PGx) test. The PlexusDx Precision Peptide Genetic Test is not a pharmacogenomic test. It does not analyze drug-metabolizing enzymes and does not predict your response to any medication. Instead, it examines peptide-related biological pathways — spanning 14 pathways, 49 peptides, 150+ genetic insights — to offer pathway-level context about your baseline biology. If you want insight into how you metabolize a specific prescription, that is a separate pharmacogenomic conversation to have with your provider. Genetics is a guide, not a guarantee.

Using Genetic Information Responsibly

Whatever genetic testing you pursue, the principle is the same: never start, stop, or change a medication based on a genetic result alone. Bring any report to a qualified healthcare provider or pharmacist who can interpret it in the full context of your care, including your other prescriptions and health history. Used that way, genetic insight turns guesswork into a more informed conversation — genetics is a guide, not a directive.

Frequently Asked Questions

Does PGx testing manage diabetes?

No. PGx testing does not manage diabetes or replace clinical care. It only informs how you may metabolize certain medications, for the drugs a test covers, and is interpreted by your healthcare provider alongside your full clinical picture.

Is the Precision Peptide Genetic Test a pharmacogenomic test?

No. The Precision Peptide Genetic Test is not a pharmacogenomic test and does not predict response to any medication. PlexusDx does not sell a PGx test. The Precision Peptide Genetic Test analyzes peptide-related biological pathways for pathway-level context about your biology. For insight into how you metabolize a specific drug, ask your provider about dedicated pharmacogenomic testing.

Can I change my medications based on a genetic test?

No. Never start, stop, or adjust any medication based on a genetic result alone. Genetic information is one input among many, including your diagnosis, other drugs, and organ function. Always review any report with a qualified healthcare provider or pharmacist before making medication decisions.

Curious about your own peptide-pathway genetics? The Precision Peptide Genetic Test analyzes 14 pathways, 49 peptides, 150+ genetic insights — pathway-level context you can bring to your healthcare provider. It is educational insight into your biology, not a diagnosis, a prescription, or a pharmacogenomic test.

This article is part of the PlexusDx Education Hub. Browse all Precision Health education

PlexusDx does not sell or offer a pharmacogenomic (PGx) test. The Precision Peptide Genetic Test analyzes how your genes influence peptide-related biological pathways. It does not predict response to any specific medication and does not recommend, prescribe, or determine which peptides or drugs you should use. Consult a qualified healthcare provider before making any medication or peptide decision.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. PlexusDx does not offer a pharmacogenomic test. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.