Diltiazem HCl Tablets are a medicine classified as a calcium channel blocker. They are mainly used to manage cardiovascular conditions by relaxing blood vessels and reducing the workload on the heart.

Here are the key details:

• Composition: Each tablet contains Diltiazem hydrochloride as the active ingredient, available in various strengths such as 30 mg, 60 mg, 90 mg, and 120 mg.

• Dosage Form: Oral tablets, sometimes immediate-release or sustained-release (SR/extended-release).

• Mode of Action: Diltiazem works by blocking calcium channels in the heart and blood vessel walls, which:

  • Relaxes blood vessels, lowering blood pressure.

  • Reduces heart rate and the heart’s oxygen demand.

  • Helps improve blood flow to the heart muscle.

• Uses:

  • Hypertension (high blood pressure)

  • Angina pectoris (chest pain due to reduced blood flow to the heart)

  • Certain arrhythmias (irregular heartbeats), such as atrial fibrillation or atrial flutter

• Treatment Goal: To lower blood pressure, prevent chest pain, and control heart rhythm disturbances.

• Side Effects:

  • Common: headache, dizziness, flushing, nausea, constipation, fatigue.

  • Less common/serious: slow heart rate (bradycardia), low blood pressure (hypotension), swelling of legs or feet, worsening heart failure in some patients.

• Precautions:

  • Should be used cautiously in patients with low blood pressure, severe heart failure, or sick sinus syndrome.

  • Monitoring of heart rate and blood pressure is recommended.

  • Interactions can occur with other blood pressure medications, certain anti-arrhythmic drugs, and some antifungals or antibiotics.

  • Not typically recommended during pregnancy unless specifically advised by a doctor.

👉 Diltiazem can be used either as a short-term relief for angina or as a long-term therapy for blood pressure and heart rhythm control.