Which drugs are commonly recognized as calcium channel blockers?

Calcium channel blockers are a specific class of medications that work by inhibiting the movement of calcium into the cells of the heart and blood vessel walls. This action leads to a reduction in blood pressure and can alleviate symptoms of angina. The drugs listed in the correct answer are commonly recognized calcium channel blockers. Norvasc, known generically as amlodipine, and diltiazem are both widely used in clinical practice for their effectiveness in treating hypertension and angina, as well as certain types of arrhythmias.

The rationale for identifying Norvasc and diltiazem specifically is based on their pharmaceutical classification. Amlodipine (Norvasc) is a long-acting dihydropyridine calcium channel blocker, while diltiazem belongs to the non-dihydropyridine category, both serving the purpose of relaxing blood vessels and reducing heart workload.

In contrast, drugs like digoxin, amiodarone, and penicillin do not fall under the calcium channel blocker category. Digoxin is primarily a cardiac glycoside used in heart failure and atrial fibrillation, while amiodarone is an antiarrhythmic medication. Penicillin is an antibiotic. These drugs serve different therapeutic