Chlorthalidone max dose?

In most cases, the maximum recommended daily dose of chlorthalidone for high blood pressure (hypertension) is 25 mg once daily. Typical starting dose is 12.5 mg once daily, and many people are maintained at 12.5–25 mg daily.

Higher doses are sometimes used for other conditions (like some kinds of edema), but those doses are less common and should be used only under a clinician’s supervision. Doses above 25 mg/day for hypertension are not generally recommended without a doctor’s instruction.

Important safety notes:
- Chlorthalidone can cause electrolyte changes (especially potassium and magnesium), dehydration, and increases in uric acid (which can trigger gout).
- It can affect kidney function and interact with NSAIDs, certain antidepressants, and other meds.
- Take in the morning to avoid nocturia.

If you’re asking about a specific situation (hypertension vs. edema) or you’re considering adjusting a current dose, tell me more and I can tailor the guidance. And if this is for you personally, please consult your prescriber before changing the dose.