Optimising Prescribing with Pharmacogenomics
Pharmacogenomics (PGx) is the study of how genes affect a person's response to drugs. This tool summarises key PGx information to help clinicians make more informed and personalised prescribing decisions.
Key Clinical Considerations:
- Efficacy: Genetic variations can influence a drug's effectiveness. Some patients may require alternative medications or dose adjustments to achieve the desired therapeutic outcome.
- Safety: PGx can help predict and prevent adverse drug reactions. Identifying patients at high risk allows for proactive management, such as selecting a different drug or starting with a lower dose.
- Dosing: Genetic factors can alter drug metabolism, leading to either toxic accumulation or rapid clearance. PGx-guided dosing helps to maintain drug concentrations within the therapeutic window.
Interpreting the Results
The search results are categorised by the clinical impact of the genetic variation:
- High Impact: A genetic variation has a major effect on drug response or toxicity. An alternative drug or a significant dose alteration is often recommended. Testing may be required.
- Moderate Impact: A genetic variation has a moderate effect. Dose adjustments or increased monitoring may be necessary. Testing may be recommended.
- Low Impact: A genetic variation has a minor effect on drug pharmacokinetics, but the clinical significance is not well established. This information may be informative.