A 46-year-old female asked:

What is the difference between potassium chloride er and cr pls? i have taken cr for over 20 yrs. it is a script dosage of 8 meqs twice a day. will th

1 doctor answer1 doctor weighed in
Dr. Bruce Jacobs
Specializes in Family Medicine
One means controlled: release, the other means extended release. I think they are the same and will give you the same dosage of potassium.
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