Pharmacogenetic Tests Test
Pharmacogenetic tests look at your genes to see how your body might respond to certain medicines. This helps your healthcare provider choose the right medicine and dose for you.
What this test measures
Pharmacogenetic tests measure changes in your genes that affect how your body uses and breaks down medicines. These gene variants can influence whether a medicine works for you or causes side effects.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Frequently asked questions
What is pharmacogenetic testing?
It is a test that looks for changes in your genes that affect how your body responds to certain medicines.
Why might my provider order this test?
To find out if a certain medicine will work for you, how much you need, or if you might have serious side effects.
What sample is used for the test?
A sample of your blood, saliva (spit), or cells swabbed from your cheek.
Can the test tell me about my health condition?
No, the test only shows how certain medicines are likely to affect you, not about your health condition.
How will my provider use the results?
Your provider will use the results along with other information about your condition to recommend or change your treatment.
Related lab tests
Sources
- MedlinePlus: Pharmacogenetic Tests — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.