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Minoxidil Dosage

Applies to the following strength(s): 2.5 mg ; 10 mg

The information at is not a substitute for medical advice. Always consult your doctor or pharmacist.

Usual Adult Dose for:

Additional dosage information:

Usual Adult Dose for Hypertension

Initial dose: 5 mg orally once a day.
Maintenance dose: 10-40 mg in 1-2 divided doses.

Dose Adjustments

Daily dosage can increase to 10, 20, then 40 mg in single or divided doses if required. Doses can be adjusted every 3 days. For rapid management doses can be adjusted every 6 hours with careful monitoring.


A supplemental dose is not necessary with hemo- or peritoneal dialysis.

Other Comments

The maximum dose of minoxidil is 100 mg/day.