Dose-equivalence by class
ACE inhibitor equivalent doses
ACE inhibitor equivalent doses here compare ramipril, enalapril and lisinopril by their WHO defined-daily-dose ratio — a low-confidence approximation, because no validated closed-form conversion exists and defined daily doses measure drug utilization, not equipotency; educational only, not a prescription.
Reference table
Doses by WHO defined-daily-dose ratio relative to ramipril 5 mg — a low-confidence approximation, not true equipotency. Educational only, not a prescription.
| Drug | Equivalent dose |
|---|---|
| Captopril | 100 mg |
| Enalapril | 20 mg |
| Lisinopril | 20 mg |
| Perindopril | 8 mg |
| Ramipril | 5 mg |
Common switches
Ramipril to Enalapril
Ramipril 5 mg maps to about 20 mg of Enalapril (modeled estimate, educational — not a prescription).
Enalapril to Lisinopril
Enalapril 10 mg maps to about 10 mg of Lisinopril (modeled estimate, educational — not a prescription).
Educational PK model: not clinical guidance. Confirm any dose change with a prescriber or pharmacist.