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Hydrochlorothiazide / Methyldopa Dosage

Medically reviewed by Last updated on Aug 4, 2023.

Applies to the following strengths: 15 mg-250 mg; 25 mg-250 mg; 30 mg-500 mg; 50 mg-500 mg

Usual Adult Dose for:

Additional dosage information:

Usual Adult Dose for Hypertension

Initial doses (as determined by titration of the individual components):

Maximum dose: Hydrochlorothiazide 50 mg/day


Renal Dose Adjustments

Mild to moderate renal dysfunction: Data not available
Severe renal dysfunction: Use with caution

If progressive renal impairment becomes evident: Consider withholding or discontinuing this drug

Liver Dose Adjustments

Contraindicated in patients with active hepatic disease



Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.


Data not available

Other Comments

Storage requirements: Protect from light.


Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.