Chlorthalidone begins working within a few hours of taking it. However, it may take several weeks for your blood pressure to improve.
Most people who take chlorthalidone will see the full blood pressure lowering effects within 2-4 weeks. Remember, this is just an average – it may take longer or shorter to see the effects of chlorthalidone.
Lowering your blood pressure is a marathon, not a sprint. It doesn’t happen immediately - it takes a few weeks. So don’t be disappointed if you don’t see results within the first few days. Think of your medicine as your teammate on the road to health.
Chlorthalidone, two to four weeks to reach its peak!