Different blood pressure medications

ACE inhibitors and angiotensin receptor blockers help widen blood vessels by acting on hormone signals. Calcium-channel blockers relax vessel muscle and may slow the heart. Diuretics help the kidneys remove salt and fluid. Beta blockers slow the heart and reduce its workload; they are used selectively. Some people need one medicine, while others need complementary medicines.

The choice can be affected by kidney function, diabetes, pregnancy, asthma, heart rhythm, age and other prescriptions. Blood pressure may have no obvious symptoms, so readings and follow-up matter even when you feel well.

Take the medicine at the prescribed time and do not stop it suddenly without medical advice. Keep a list of medicines, supplements and allergies. Report dizziness, ankle swelling, troublesome cough, unusually slow pulse or fainting; these may need a dose or medicine review. Home readings can help, but use the technique recommended by your clinician. Ambulatory blood pressure monitoring may show how pressure changes during ordinary activities.

Call emergency services for chest pain, severe breathlessness, collapse, new weakness on one side, trouble speaking or a sudden severe headache. These can signal an emergency such as stroke or a heart problem. Seek prompt medical advice for repeated fainting or concerning medicine reactions.

Ask what the medicine is intended to do, when to take it, which side effects matter, and what to do after a missed dose. Discuss interactions with painkillers or supplements, target readings, monitoring tests and when treatment should be reviewed.