Comprehensive testing backed by state-of- the-art technology
The G.A.P Test – or Genetic Assisted Prescribing Test – is one of the most comprehensive drug compatibility test on the market, covering 20+ genes, 12 therapeutic categories, and more than 300 medications. With one simple test, you can access a complete genetic profile for your patients, allowing you to confidently prescribe the drug and dose that is best suited for them.
Test development and analysis conducted by leaders in the fields of molecular genetics and personalized medicine. You can feel fully confident in the reliability of The G.A.P Test results.
Read on to learn about our simple process and how you can register to receive The G.A.P Test DNA collection kit..
Offering personalized medicine to patients has never been faster or easier
We have streamlined the process of ordering The G.A.P Test. Simply register on our site, receive your G.A.P Test DNA collection kits and follow the steps listed below:
swab
Collect your patient’s DNA during their initial visit with a simple non-invasive buccal swab
send
Send the buccal swab via prepaid envelope to ChromoCare’s Network
results
Receive test results typically 5 to 7 business days after our lab receives the sample
prescribe
Prescribe the best medication for your patient based on their unique genetic makeup
Questions or Concerns?
Call us at 844-688- TEST and we’ll be happy to help.
Comprehensive gene analysis means more effective personalized care for patients
The G.A.P Test analyzes 20+ genes known to affect the metabolism of more than 300 medications. Specifically, our test covers the most studied class of enzymes, cytochrome p450, which are essential for the metabolism of many medications including Plavix and Coumadin, two of the medications for which pharmacogenetic testing is commonly recommended. The following enzymes covered by The G.A.P Test have been scientifically proven to affect a patient’s response to a variety of frequently prescribed drug classes, including beta-blockers and antidepressants.
Enzymes analyzed include:

Drugs covered:
Anti-Depressant/Anti-Anxiety
- aripiprazole (Abilify)
- citalopram (Celexa)
- desipramine (Norpramin)
- doxepin (Adapin, Silenor, Zonalon)
- escitalopram (Lexapro)
- imipramine (Tofranil)
- nortriptyline (Aventyl Hydrochloride, Pamelor)
- sertraline (Zoloft)
- trimipramine (Surmontil)
- venlafaxine (Effexor)
- And More
Birth Control
- hormonal contraceptives (Ortho Tri-Cyclen, Seasonique, Yasmin)
Cardiovascular
- clopidogrel (Plavix)
- flecainide (Tambocor)
- metoprolol (Lopressor, Toprol-XL, Metoprolo Succinate ER)
- propafenone (propafenone systemic)
- warfarin (Coumadin, Jantoven)
- And More
Endocrinology
- simvastatin (Zocor, Vytorin, Simcor)
- And More
Gastroenterology
- esomeprazole (Nexium, Vimovo)
- lansoprazole (Prevacid)
- omeprazole (Prilosec, Zegerid, Omesec)
- pantoprazole (Protonix)
- And More
Hematology
- mercaptopurine (Purinethol, Purixan)
- thioguanine (Tabloid)
- And More
Neurology
- phenytoin (Dilantin, Phenytek)
- And More
Oncology
- capecitabine (Xeloda)
- fluorouracil (Adrucil, Carac, Efudex)
- irinotecan (Camptosar)
- tamoxifen (Nolvadex, Tamofen, Tamoxen)
- tegafur (Uftoral, Tegafur)
- And More
Pain Management
- codeine (Robitussin-AC, Tylenol with Codeine,Cotabflu)
- oxycodone (Percocet, OxyContin, Roxicodone)
- tramadol (Ultram, ConZip, Ultracet)
- And More
Psychiatry
- amitriptyline (Elavil, Endep, Vanatrip)
- atomoxetine (Strattera)
- haloperidol (Haldol)
- risperidone (Risperdal)
- And More
Rheumatology
- azathioprine (Azasan, Imuran)
- And More
Personalized medicine is now more accessible and affordable than ever before
The G.A.P Test is the most comprehensive and affordable drug compatibility test on the market. While reimbursement policies for pharmacogenetic testing are continuing to evolve, Medicare and most private insurance companies are now covering The G.A.P Test. Insurance coverage varies by plan and provider, so please encourage your patients to speak with their insurance provider for more information about their specific policy.
The following CPT codes are for your reference if you would like to confirm eligibility in advance.
A simple report generated with you in mind
Your patient’s G.A.P Test results are made available to you within 3 days via our online portal. In one simple and easy to read report you can see a complete list of your patient’s genetic variations along with a comprehensive assessment of which drugs you should avoid and which are safe to prescribe.

The report starts by highlighting the genetic results for the specific compound requested in the test requisition form so you can quickly see the results of the drug you are most interested in prescribing your patient.

Next, the report lists other drug compounds that may have safety or efficacy concerns for your patient based on their genetic variations.

Specific recommendations for drugs with warnings can be found under the full report. This section provides detail on each drug compound, the related genes and recommendations for prescribing.The report is organized by therapeutic category and is conveniently color-coded for easy warning level identification.
