🔗 Drug Interaction Key Points
UseRaise awareness of common interaction mechanisms. Verify each specific pair in a professional interaction dat…
SourceLexicomp / Micromedex drug interaction databases (verify each pair)
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
Methodology · worked example, guidelines & full notes
Not exhaustive and not a substitute for pair-by-pair checking.
When to use
Raise awareness of common interaction mechanisms. Verify each specific pair in a professional interaction database.
How it works
Mechanism-based groupings (enzyme inhibition/induction, additive QT/serotonin/bleeding/renal effects) with example drug combinations.
Key points
- Not exhaustive and not a substitute for pair-by-pair checking.
- CYP3A4 inhibitors raise statin/CCB/immunosuppressant levels; inducers cause contraceptive/DOAC failure.
- Serotonin syndrome: SSRI/SNRI + MAOI/linezolid/tramadol and others.
- Account for dose, duration and the individual patient.
References
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Mechanism | Serotonin syndrome |
|---|
→MechanismSerotonin syndrome
- Combinations:SSRI/SNRI + MAOI/linezolid/tramadol/triptan/lithium/St John's wort/meperidine
- Features:Hyperthermia, myoclonus/hyperreflexia, autonomic instability, agitation
| Mechanism | CYP3A4 inhibition/induction |
|---|
→MechanismCYP3A4 inhibition/induction
- Strong inhibitors:Azole antifungals, clarithromycin/erythromycin, ritonavir, grapefruit
- Inhibition effects:Statins (myopathy/rhabdomyolysis), CCBs, immunosuppressants, some DOACs, ergot — levels ↑
- Strong inducers:Rifampin, carbamazepine, phenytoin, phenobarbital, St John's wort
Verification & sources · governance
FAQ
Frequently asked questions
- What are the limits and cautions when using Drug Interaction Key Points?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- Does Drug Interaction Key Points upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Drug Interaction Key Points calculated in practice? Can you show a worked example?
- Inputs: Mechanism Serotonin syndrome → Result: Mechanism Serotonin syndrome(Combinations: SSRI/SNRI + MAOI/linezolid/tramadol/triptan/lithium/St John's wort/meperidine, Features: Hyperthermia, myoclonus/hyperreflexia, autonomic instability, agitation) Inputs: Mechanism CYP3A4 inhibition/induction → Result: Mechanism CYP3A4 inhibition/induction(Strong inhibitors: Azole antifungals, clarithromycin/erythromycin, ritonavir, grapefruit, Inhibition effects: Statins (myopathy/rhabdomyolysis), CCBs, immunosuppressants, some DOACs, ergot — levels ↑, Strong inducers: Rifampin, carbamazepine, phenytoin, phenobarbital, St John's wort)