I am currently a heart patient, and have started to experience leg cramps. What could be some reasons for that. I ve had them in the past, but not as often. I ve heard they can be from medications, or dehydration? I ve taken two 99mg over the counter potassium the last several nights, but still get cramps several times a night. They only seem to happen when my legs are up in a recliner, or in bed. Can I take more potassium or is there a maximum a person can take? Or is there something else that might cause them? Mike,