Aldactone Dosage

Aldactone Dose for Heart Failure

The recommended starting Aldactone dose for treating severe heart failure is Aldactone 25 mg once daily. If necessary, your healthcare provider may increase your dose to 50 mg once daily or decrease it to 25 mg every other day.
Before starting Aldactone, people with severe heart failure should have their potassium level and kidney function checked. If your potassium is too high or your kidney function is too poor, Aldactone may not be recommended for your particular situation.

Dose of Aldactone for Water Retention

The recommended starting Aldactone dose for water retention (edema) is 100 mg daily. This can be taken all at once or split up into two smaller doses per day. Your healthcare provider may need to adjust your dose if side effects occur or if your water retention is not under control. Typical doses range from Aldactone 25 mg to 200 mg daily.

Aldactone Dosage for Hypokalemia

The recommended Aldactone dose for treating low potassium levels in the blood (hypokalemia) is 25 mg to 100 mg daily (either taken all at once or split up into smaller doses).

General Dosing Information

Some considerations for people taking Aldactone include:
  • Aldactone comes in tablet form. It is usually taken by mouth once or twice a day.
  • You can take Aldactone with or without food.
  • Aldactone should be taken at the same time(s) each day to maintain an even level of the medicine in your blood.
  • Because Aldactone increases urination, it is best to take it in the morning (to avoid needing to get up to use the bathroom throughout the night). If you take Aldactone twice daily, try to take your last dose of the day before 6 p.m., unless your healthcare provider instructs you otherwise.
  • For Aldactone to work properly, it must be taken as prescribed. The medication will not work if you stop taking it.
  • If you are unsure about anything related to Aldactone or your Aldactone dosage, please talk to your doctor, nurse, or pharmacist.
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