How much time does it take to recover from hyponatremia (sodium deficiency)?

Water excess: Hi. Hyponatremia is virtually ALWAYS due to water excess, NOT sodium deficiency. Depending on how LOW below normal your sodium is, correction may have to be done fairly gradually to prevent harm. You need to see a competent diagnostician to assess your volume status (fluid overloaded, dehydrated, or normal), and causative conditions, then institute water restriction (or a vaptan drug). Good luck!