What is one of the primary uses of calcium channel blockers aside from treating hypertension?

Calcium channel blockers are primarily used to help manage heart irregularities, such as arrhythmias. These medications work by inhibiting the movement of calcium into the cells of the heart and blood vessels, leading to a decrease in heart rate and a more regular heart rhythm. This property makes them effective in treating various heart conditions, including atrial fibrillation and other types of abnormal heart rhythms. The regulation of calcium is crucial for heart muscle contractions; thus, by controlling the influx of calcium, these medications can help stabilize the heart’s electrical activity and improve overall cardiac function.

The other options do not accurately reflect the uses of calcium channel blockers. They are not designed to increase glucose levels, reduce lung inflammation, or stimulate muscle contractions, which helps clarify the specific role these medications play in cardiac health.