Isosorbide and Aspirin Tablets

• Type: Combination cardiovascular medication

• Components:

  • Isosorbide (Mononitrate or Dinitrate): A nitrate that dilates blood vessels

  • Aspirin (Acetylsalicylic Acid): An antiplatelet drug that prevents blood clots

• Form: Oral tablet

How It Works

• Isosorbide relaxes and widens blood vessels (both veins and arteries), reducing the workload on the heart and improving blood flow to the heart muscle.

• Aspirin inhibits platelet aggregation (clumping), preventing the formation of blood clots that could block arteries.

• Together, they improve oxygen delivery to the heart and lower the risk of heart attack or chest pain (angina).

Common Uses

• Prevention of Angina Pectoris (chest pain caused by reduced blood flow to the heart)

• Secondary prevention after heart attack – helps prevent recurrence

• Management of stable coronary artery disease

• Prevention of clot formation in people with known atherosclerosis

Advantages

• Convenient two-in-one formulation for heart protection

• Reduces frequency and severity of angina attacks

• Lowers long-term risk of heart attack and stroke

• Improves exercise tolerance in patients with coronary artery disease

Possible Side Effects

From Isosorbide:

• Headache (very common, due to vessel dilation)

• Dizziness or lightheadedness

• Low blood pressure

• Flushing

From Aspirin:

• Stomach irritation, heartburn

• Risk of stomach ulcers or bleeding

• Easy bruising or bleeding

• Rarely: allergic reaction (rash, difficulty breathing)

Precautions

• Should not be used in patients with severe low blood pressure or those taking PDE-5 inhibitors (e.g., sildenafil) – risk of dangerous drop in blood pressure

• Caution in people with bleeding disorders, peptic ulcers, or aspirin allergy

• Avoid sudden discontinuation in patients with coronary artery disease — may worsen angina

• Taken preferably after meals to minimize stomach irritation from aspirin

• Regular blood pressure and heart rate monitoring recommended