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Calcium channel blockers – Mayo Clinic

Calcium channel blockers

These medications lessen blood pressure and deal with other situations these types of as chest soreness and an irregular heartbeat.

By Mayo Clinic Personnel

Calcium channel blockers are medications employed to lessen blood pressure. They function by blocking calcium from moving into the cells of the coronary heart and arteries. Calcium results in the coronary heart and arteries to squeeze (deal) far more strongly. By blocking calcium, calcium channel blockers make it possible for blood vessels to rest and open up.

Some calcium channel blockers can also gradual the coronary heart rate, which can more lessen blood pressure. The medications may also be recommended to alleviate chest soreness (angina) and command an irregular heartbeat.

Calcium channel blockers are also named calcium antagonists.

Examples of calcium channel blockers

Calcium channel blockers are offered in shorter-performing and long-performing types. Small-performing medications function speedily, but their consequences last only a number of hrs. Very long-performing medications are slowly unveiled to supply a for a longer time lasting result. Which one is greatest for you is dependent on your well being and the situation becoming addressed.

Examples of calcium channel blockers incorporate:

  • Amlodipine (Norvasc)
  • Diltiazem (Cardizem, Tiazac, other people)
  • Felodipine
  • Isradipine
  • Nicardipine
  • Nifedipine (Procardia)
  • Nisoldipine (Sular)
  • Verapamil (Calan SR, Verelan)

Sometimes, a medical doctor may possibly prescribe a calcium channel blocker with other superior blood pressure medications or with cholesterol-decreasing medication these types of as statins.

When calcium channel blockers are employed

In addition to becoming employed to deal with superior blood pressure, a medical doctor also may prescribe calcium channel blockers to reduce, deal with or strengthen signs and symptoms of situations, these types of as:

  • Coronary artery ailment
  • Chest soreness (angina)
  • Irregular heartbeats (arrhythmia)
  • Blood vessel situations, these types of as Raynaud’s ailment

For blacks and more mature persons, calcium channel blockers may possibly function superior than other blood pressure medications, these types of as beta blockers, angiotensin-changing enzyme (ACE) inhibitors or angiotensin II receptor blockers.

Side consequences

Side consequences of calcium channel blockers may incorporate:

  • Constipation
  • Dizziness
  • Speedy heartbeat (palpitations)
  • Tiredness
  • Flushing
  • Headache
  • Nausea
  • Rash
  • Inflammation in the ft and lessen legs

Prevent grapefruit merchandise although having specified calcium channel blockers. Grapefruit juice interacts with the drug and can affect coronary heart rate and blood pressure. This can induce signs and symptoms these types of as problems and dizziness.