Dichlorphenamide Dosage

Medically reviewed by Drugs.com. Last updated on Feb 20, 2025.

Usual Adult Dose for Primary Periodic Paralysis

• Initial dose: 50 mg orally 2 times a day; the initial dose may be increased or decreased based on individual response, at weekly intervals (or sooner in case of adverse reaction)
• Maximum dose: 200 mg orally per day

Comment:

• Primary hyperkalemic periodic paralysis, primary hypokalemic periodic paralysis, and related variants are a heterogeneous group of conditions, for which the response to this drug may vary. Prescribers should evaluate patient response to this drug after 2 months of treatment to decide whether therapy should be continued.

Use: For the treatment of primary hyperkalemic periodic paralysis, primary hypokalemic periodic paralysis, and related variants.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Contraindicated in hepatic insufficiency

Precautions

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

Consult WARNINGS section for additional precautions.

Dialysis

Data not available

Other Comments

Patient advice:

• Patients should be advised to notify their physician if they experience worsening of symptoms of periodic paralysis.
• This drug may cause drowsiness/fatigue in some patients. Patients should be advised of the potential for impaired ability to drive and operate machinery.

Further information

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

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