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Miscellaneous musculoskeletal disorders
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Generic Name and Formulations:

Dichlorphenamide 50mg; scored tabs.

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Indications for KEVEYIS:

Primary hyperkalemic or hypokalemic periodic paralysis and related variants.


Initially 50mg twice daily. Adjust dose based on response, at weekly intervals (or sooner if adverse reactions occur); max 200mg daily. Evaluate after 2 months.


Not established.


Concomitant high-dose aspirin. Severe pulmonary disease. Hepatic insufficiency. Sulfonamides.


Discontinue at first sign of skin rash or immune-mediated or idiosyncratic adverse reaction. Adrenocortical insufficiency, hyperchloremic metabolic acidosis, respiratory acidosis: increased risk of hypokalemia. Metabolic acidosis. Monitor serum potassium and bicarbonate at baseline and periodically during treatment; reduce dose or discontinue if hypokalemia or metabolic acidosis develops. Increased risk of falls (esp. elderly, higher doses); consider dose reduction or discontinuation if occurs. Elderly. Pregnancy (Cat.C). Nursing mothers.

Pharmacological Class:

Carbonic anhydrase inhibitor.


Caution with concomitant low-dose aspirin. Increased risk of hypokalemia with loop or thiazide diuretics, laxatives, antifungals, penicillin, and theophylline.

Adverse Reactions:

Paresthesia, cognitive disorder, dysgeusia, confusion, hypoesthesia, lethargy, dizziness, nausea, fatigue, muscle spasms, rash; hypersensitivity reactions.

Generic Availability:


How Supplied:


KEVEYIS 50mg tablets (Qty:30)

appx. price $4060.00