It comes as a tablet to take by mouth. It is usually taken once a day with or without food. Adults?20 milligrams (mg) once a day. Your doctor may increase your dose to 40 milligrams (mg) once a day if needed. Children (6 to 16 year of age): Oral: Start with 10 mg once daily for patients who weigh 20 to less than 35 kg, or 20 mg for patients who weigh 35 kg or more.
Common side effects
Feeling dizzy. Rise slowly over a few minutes when sitting or lying down. Be careful climbing. Cough. Loose stools (diarrhea). High potassium level. Signs include feeling weak, lightheaded, dizzy, feel like passing out, or have numbness or tingling. Kidney function that gets worse.