For this indication, competent medicine agencies globally authorize below treatments:
Oral
5 - 5 mg
From 5 To 5 mg once every day
The recommended dosage in mild to moderate hypertension is 5 mg once a day.
If 5 mg once a day is not sufficiently effective after at least 4 weeks of treatment, the addition of another antihypertensive agent is recommended (preferably a thiazide diuretic, ACE inhibitor or beta-blocker).
Isradipine can also be added to existing antihypertensive treatment.