Physicians are moving away from the traditional ‘one size fits all’ approach to medical practice. The reason for this is the realization that a person’s genetics determines how they respond to medications. Everyone has a unique genetic make-up. A medication that works perfectly well for one patient may not work for another patient and may be fatal in some cases.Well-known cases of adverse drug reactions (ADR) caused by genetic variability include:

  • life-threatening complications for breastfed infant of some mothers who have been prescribed codeine for pain relief. Click here to learn more .
  • Adjusting the dose of the blood thinning medicine Warfarin (Coumadin) based on the genetic make-up of the patient. Click here to learn more .

Genetic tests performed on patient’s specimens provide information that physicians can use when prescribing medication. This modern form of medical practice is known as Personalized Medicine. The genetic tests fall under the category of Pharmacogenetic Tests.  Pharmacogenetic testing is a scientific approach to understand your genetic make-up that helps your doctor predict what medications will work best for you and the proper dosage. Your genetic information allows your physician to determine the best match between you and your medication. 

MDL uses a simple cheek swab (buccal swab) to collect your DNA sample. It is a pain-less, convenient and needle-free specimen collection procedure. The swab is shipped to MDL for analysis. Analysis of your DNA produces a thorough report allowing your physician to prescribe with confidence so you receive the most effective medication and dosage possible.

How it Works. 3 Easy Steps.

Patient Tests Offered

Pharmacogenetic testing is a scientific approach to understand your genetic make-up that helps your doctor predict what medications​READ MORE 

ServicesSince 1997, MDL has been at the forefront of genetic and molecular testing. The brainchild of a visionary professor from READ MORE 


  • Olivia Williams

    Olivia Williams is a medical writer with a passion for both photography and pets. With a background in medicine and a keen eye for detail, Jane has a unique perspective on health and wellness that she brings to her writing. Whether she's crafting informative articles for medical journals or capturing stunning images of animals, Jane's work is always thoughtful and engaging. In her free time, you can find her cuddling with her furry friends or snapping photos of nature's beauty.