Efonidipine Maximum Dose
The maximum recommended dose of efonidipine is 60 mg twice daily (120 mg total daily dose). 1
Dosing Guidelines
Standard Dosing Regimen
- Starting dose: 5 mg once daily 1
- Dose adjustments: Can be decreased to 2.5 mg or increased to 10 mg once daily based on patient response 1
- Adjustment intervals: Generally not less than 2 weeks between dose changes 1
- Recommended dosage range: 2.5–10 mg once daily 1
Higher Dose Considerations
- Clinical trial experience: Doses above 10 mg daily showed increased blood pressure response but were associated with a large increase in peripheral edema and other vasodilatory adverse events 1
- Maximum therapeutic dose: In research settings, efonidipine has been used at 20-60 mg twice daily (40-120 mg total daily) for specific indications like chronic glomerulonephritis 2
- Standard practice dose: 40 mg once daily is commonly used in clinical studies for hypertension management 3, 4
Special Populations
Elderly Patients (≥65 years)
- Initial dose: Start at the low end of dosing range (2.5 mg daily) 1
- Rationale: Elderly patients develop higher plasma concentrations of the drug 1
- Monitoring: Close blood pressure monitoring required during any dosage adjustment 1
Hepatic Impairment
- Patients with impaired liver function may have elevated plasma concentrations 1
- Lower doses may be appropriate with close blood pressure monitoring during adjustment 1
Renal Impairment
- Modification of recommended dosage is usually not required 1
Important Clinical Considerations
Administration
- Should be taken either without food or with a light meal 1
- Must be swallowed whole; do not crush or chew 1
Common Pitfall
The primary limitation of higher doses (>10 mg daily) is the significantly increased risk of peripheral edema and vasodilatory adverse effects, which may compromise quality of life despite improved blood pressure control 1. Therefore, while 60 mg twice daily represents the absolute maximum used in specialized settings, the practical maximum for routine hypertension management is 10 mg once daily.