Amlodipine usually starts lowering blood pressure within 6 to 12 hours , but its full effect can take about 1 to 2 weeks of daily use.
What to expect
- Some people notice a mild change the first day.
- The effect builds gradually because the medicine stays in the body a long time.
- Doctors often wait at least 1 to 2 weeks before deciding whether the dose is working well enough.
Why it feels slow
Amlodipine has a long half-life, so it accumulates over several days rather than acting like a fast-acting rescue medicine.
When to get help
If it was prescribed for high blood pressure and you have chest pain, severe dizziness, fainting, or very high readings with symptoms, seek urgent medical care.