diltiazem

/dɪlˈtaɪəzɛm/
noun
  1. A medication used to treat high blood pressure, chest pain (angina), and certain heart rhythm disorders.
    • The doctor prescribed diltiazem to lower her blood pressure.
    • He takes diltiazem every morning to prevent chest pain.
    • Diltiazem works by relaxing the blood vessels and improving blood flow.