Anagrelide 💊
⚠️ For expert haematology use only
Always verify dosing and monitoring via the BNF entry for Anagrelide.
📘 About
- Selective platelet-lowering agent used under specialist supervision.
- Refer to the BNF or institutional guidelines for up-to-date prescribing advice.
⚙️ Mode of Action
- Exact mechanism remains incompletely understood.
- Inhibits cyclic AMP phosphodiesterase type III (PDE-III) → reduces megakaryocyte maturation and platelet production.
💊 Indications & Dose
| Name |
Typical Dose |
Frequency |
Route |
| Anagrelide (for Essential Thrombocythaemia or CML-associated thrombocytosis) |
Start at 500 micrograms BD. Titrate gradually to usual dose 1–3 mg/day in divided doses.
Max per dose 2.5 mg; max daily 10 mg. |
BD–TDS |
Oral |
🔗 Interactions
- Avoid concurrent use with other PDE-III inhibitors (e.g. milrinone, cilostazol, enoximone).
- Use caution with anticoagulants or antiplatelet agents (↑ bleeding risk).
⚠️ Cautions
- Monitor FBC, U&E, and LFTs regularly during treatment.
- Assess QTc interval; avoid if prolonged or in significant cardiac disease.
- Use with care in renal impairment or heart failure.
🚫 Contraindications
- Moderate to severe hepatic impairment.
- Pregnancy and breastfeeding.
💥 Side Effects
- Haematological: Thrombocytopenia, anaemia.
- Cardiac: Palpitations, tachycardia, arrhythmias, heart failure.
- GI: Nausea, diarrhoea, abdominal pain.
- Other: Headache, dizziness, oedema, dyspnoea, rare interstitial lung disease.
📚 References