When should you take your blood pressure medicine for the best effect?
Ask the doctor
Q. What is the best time to take a blood pressure medication — in the morning or before bed?
A. Most people's blood pressure tends to be lower during nighttime sleep compared to blood pressure levels during the day (by about 10 points on average). In general, it makes the most sense to take your blood pressure medication in the morning so that it will be in effect when your blood pressure is naturally higher. However, many people who measure their own blood pressure have higher readings in the morning compared to the evening. In consultation with your doctor, you may want to take one-half doses of your pills twice per day (in the morning when you wake up and again in the evening). Or your doctor may recommend taking the full doses at night.
Another reason half-doses twice per day: Some people experience fatigue or sleepiness as a side effect of blood pressure medications. In this case, doctors will sometimes suggest taking the medication before bed. If you are considering this switch, talk to your doctor first. Always tell your doctor about any side effects before changing how you take your medications.
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