Kalciumkanalhämmare

Kalciumkanalhämmare, also known as calcium channel blockers, are a class of medications used to manage a variety of conditions, primarily cardiovascular diseases. These drugs work by blocking the entry of calcium into the cells of the heart and blood vessels. Calcium plays a crucial role in muscle contraction, and by regulating its flow, these medications can influence heart rate, blood pressure, and the contractility of the heart muscle.

There are several subtypes of calcium channel blockers, broadly categorized into dihydropyridines and non-dihydropyridines. Dihydropyridines primarily affect blood vessels, causing them to relax and widen, which lowers blood pressure and reduces the workload on the heart. Non-dihydropyridines have a more pronounced effect on the heart itself, slowing the heart rate and reducing the force of contraction.

Kalciumkanalhämmare are commonly prescribed for hypertension (high blood pressure), angina pectoris (chest pain due to reduced blood flow to the heart), and certain types of arrhythmias (irregular heartbeats). They can also be used to treat conditions like Raynaud's phenomenon. Like all medications, they can have side effects, which may include dizziness, headache, constipation, and swelling of the ankles. It is important to use these drugs only under the guidance of a healthcare professional who can determine the appropriate type and dosage for an individual's specific needs.