Disease

Hyperkalemic periodic paralysis1

Gene

SCN4A

Inheritance AD
Current Treatments Dichlorphenamide. Mild exercise and/or oral ingestion of carbohydrates at the onset of weakness. Intravenously injected glucocorticoids or the inhalation of two puffs of 0.1 mg salbutamol or calcium gluconate (0.5-2 g taken intravenously) may terminate attacks in some individuals.
Evidence for Treatment expert opinion
Non-Molecular Testing Availability no
Disease Frequency (per 100,000) 0.172
Genes Included in Disease Frequency SCN4A
Experimental / Investigational Therapies https://clinicaltrials.gov/ct2/results?cond=Hyperkalemic+Periodic+Paralysis&term=&cntry=&state=&city=&dist=
Last Updated: March 5, 2026
RX Genes
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