Dihydropyridine (CCB) dose calculator: % of maximum
Highest licensed dose chart, by drug
No validated milligram-for-milligram conversion exists between dihydropyridines; this table shows each drug's highest licensed dose, the basis for comparing them at the same % of maximum. The within-class dose-response is flat (Law 2003), and a matched blood-pressure effect does not make them interchangeable — they differ in half-life and formulation. Educational only, not a prescription.
| Drug | Licensed maximum |
|---|---|
| Amlodipine | 10 mg |
| Levamlodipine | 5 mg |
| Felodipine | 10 mg |
| Nifedipine (prolonged-release) | 90 mg |
| Lacidipine | 6 mg |
| Nitrendipine | 40 mg |
| Lercanidipine | 20 mg |
There is no validated milligram-for-milligram conversion between dihydropyridine calcium-channel blockers such as amlodipine, felodipine and nifedipine; their within-class blood-pressure dose-response is flat (Law 2003), so the honest comparison is at the same percentage of each drug's own highest licensed dose. This page refuses a fixed ratio and shows the %-of-max basis — educational only, not a prescription.
Data current as of July 2026.