Medications do not affect everyone in the same way.
Some people experience more side effects.
Scientists studied genes.
Genes influence how medications break down in the body.
In some people, medications break down slowly.
This can cause more side effects.
Medications can accumulate in the body.
This can be dangerous.
Genes are not the only reason.
Other factors also affect how medications work.
For example, other medications or illnesses.
Scientists studied 114 people.
They gave them medications.
They measured the medications in their blood.
The results help prescribe medications more effectively.
Genetic testing helps understand how medications work.
Always talk to your doctor before changing medications.