Isosorbide Dinitrate

Dosage Forms Available

• Isosorbide Dinitrate is available in several dosage forms including oral tablets, chewable tablets, extended-release tablets and capsules. It's also available for use as a sublingual tablet and injectable solution.

Age and Dose Restrictions

• This medicine is intended for use by adults only. The safety and efficacy of Isosorbide Dinitrate in children have not yet been established.

Contraindications

• Isosorbide Dinitrate is contraindicated for patients with known hypersensitivity to the medication or to any other nitrates.

• It should not be used by individuals with severe anemia, recent head trauma or cerebral haemorrhage, and severe hypotension.

Other Medications to Avoid

• Isosorbide Dinitrate may interact with antihypertensives and diuretics (such as Furosemide and hydrochlorothiazide), antibiotics (like Rifampin), and IPDE5 inhibitors (like Sildenafil and Tadalafil), leading to a potentially life-threatening drop in blood pressure. Before starting this medication, it's essential to consult a doctor.

Overdose and Missed Dose

• In the event of an overdose of Isosorbide Dinitrate, you might experience symptoms such as headache, dizziness, fainting or rapid heart rate. If you suspect that you've overdosed, seek immediate medical attention.

• If you miss a dose of this medicine, take it as soon as you remember. However, if it's near the time for your next dose, skip the missed dose and return to your regular schedule. Do not take extra doses to compensate for a missed one.

Management of Side Effects

Most side effects of Isosorbide Dinitrate are temporary and generally harmless, resolving when discontinuing this medicine. However, if you experience severe side effects or worsening of any symptoms, please consult your doctor.

• Common side effects like headache and dizziness might be managed by lying down and resting.

• Nausea can be controlled by taking the medicine with food.

• If you experience flushing, a cool cloth or fan may provide relief.

Use in Driving and Operating Machinery

• Isosorbide Dinitrate may cause dizziness or blurred vision. These side effects may impair your ability to drive or operate machinery. If you experience these side effects, avoid driving or operating heavy machinery.

Use in Pregnancy and Lactation

• The use of Isosorbide Dinitrate during pregnancy is classified as Category C, meaning it should only be used if the potential benefit justifies the risk to the foetus. It's not known whether this medicine is excreted in breast milk, so caution is advised for breastfeeding mothers.

Caution in Other Conditions

• Caution should be exercised when administering Isosorbide Dinitrate to patients with hypertrophic cardiomyopathy as it may worsen their condition.

• Patients with glaucoma or recent myocardial infarction should use this medicine cautiously.

Special Dietary and Lifestyle Recommendations

• If you are prescribed Isosorbide Dinitrate for angina pectoris or heart failure, it's recommended to also maintain a heart-healthy diet which includes plenty of fruits, vegetables, whole grains, lean meats, and low-fat dairy products.

• Regular physical activity is also beneficial. However, it's essential to discuss with your doctor what type and amount of physical activity is suitable for you.

• Smoking can worsen your condition, so quitting smoking is highly recommended.

• Regular monitoring of blood pressure and cholesterol levels can help manage your condition effectively.