The recommended dosage for Slow K (Potassium Chloride ER) can vary depending on a person's specific medical condition and needs. It is crucial to follow your doctor's prescription or the label instructions carefully. Generally, a common starting dose for potassium deficiency may be one tablet (typically 600 mg or 750 mg) taken once daily, but your healthcare provider will determine the right dose for you based on your individual requirements. Never exceed the prescribed dosage, and always consult your healthcare professional for guidance.