Types of blood pressure medicine

ACE inhibitors and angiotensin receptor blockers relax blood vessels by acting on hormone signals. Calcium-channel blockers widen arteries, while diuretics help the body remove extra salt and water. Beta blockers slow the heart and reduce its workload; they may be useful for some heart conditions as well as blood pressure.

One medicine may control your readings, but some people need a combination. The choice can be affected by kidney function, diabetes, pregnancy, asthma, pulse rate and previous side effects. Blood pressure often causes no noticeable symptoms, so treatment is guided by measurements rather than how you feel.

Take the medicine at the prescribed time and do not stop it suddenly without medical advice. Keep a list of every prescription, over-the-counter medicine and supplement, because some painkillers and decongestants can affect blood pressure or interact with treatment.

A clinician may review home readings, pulse, kidney blood tests and salts in the blood after starting or changing treatment. Ambulatory Blood Pressure Monitoring can record readings during ordinary activities and sleep when a clearer pattern is needed.

Seek urgent help for chest pressure, severe breathlessness, fainting, sudden weakness on one side, new trouble speaking or a sudden severe headache. These symptoms can signal a serious problem such as Angina or Stroke and need prompt assessment.

Contact the prescriber soon if you develop troublesome dizziness, fainting, swelling, a persistent cough, wheezing or a very slow pulse after a medicine change. Do not double a missed dose unless your clinician has given that instruction.

Ask which medicine is being used, what result to expect, when to check your pressure, and which side effects need a call. Ask whether your other conditions, pregnancy plans, kidney tests or current medicines change the safest option.