[Familial periodic paralysis (hypopotassaemic form) (author's transl)]

The case history of a mother and daughter with familial periodic paralysis serves to illustrate the features of the hypokalaemic form of this condition. The development of attacks in the child does not appear to be based on intermittent hyperaldosteronism as trigger mechanism. A good therapeutic response to the potassium-retaining preparation, triamterene is reported.