I normally, as part of my medication routine, take 3 ea Potassium Chloride - PO 10 MEQ daily. Thru some medical problems etc I am running short of some of my prescribed meds. To tide me over for a short while, I picked up a Potassium supplement at the drugstore today, Potassium Supplement, 99 mg. Can I substitute this kind for about a week ? Eva W.