Isoket

Isosorbide dinitrate, the active ingredient in Isoket, is an organic nitrate presented as an intravenous solution for intravenous use. It treats angina pectoris and heart failure in adult patients.

GNH USA supplies Isoket as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals worldwide.

Isosorbide dinitrate is used in the management of cardiovascular conditions that increase myocardial oxygen demand.

Angina pectoris: reduces the frequency and severity of chest pain episodes. Heart failure: improves symptoms and exercise tolerance in chronic heart failure. Prevention of angina attacks: provides prophylactic relief when administered before exertion.

Isosorbide dinitrate may cause a range of adverse reactions, from mild to severe.

Common Side Effects: - Headache: throbbing or pressure headache. - Flushing: warmth and redness of the face or neck. - Hypotension: noticeable drop in blood pressure causing dizziness. - Tachycardia: rapid heart rate. - Nausea: feeling of queasiness or upset stomach. - Peripheral edema: swelling of the lower limbs.

Serious or Rare Side Effects: - Severe hypotension: marked drop in blood pressure leading to fainting. - Methemoglobinemia: abnormal hemoglobin causing cyanosis. - Allergic reactions: rash, itching, swelling, or anaphylaxis. - Reflex tachycardia: rapid heart rate in response to blood pressure fall.

When using Isoket, clinicians should consider several safety measures.

Avoid abrupt discontinuation: may precipitate rebound angina. Monitor blood pressure: especially in patients with baseline hypotension. Assess cardiac status: in severe heart failure or recent myocardial infarction. Use with caution in elderly: increased sensitivity to vasodilatory effects. Avoid concomitant phosphodiesterase‑5 inhibitors: risk of profound hypotension. Store at below 25°C: keep in original container, protect from moisture and light.

Isosorbide dinitrate can interact with several drug classes, requiring careful management.

Major Interactions (Avoid): - Phosphodiesterase‑5 inhibitors (e.g., sildenafil): may cause severe hypotension. - Other nitrates or nitric oxide donors: additive vasodilatory effect leading to dangerous blood pressure drops.

Moderate Interactions (Monitor Closely): - Antihypertensives (ACE inhibitors, beta‑blockers): may enhance blood pressure lowering. - Diuretics: can increase risk of orthostatic hypotension. - Alcohol: may potentiate vasodilatory response. - Certain antibiotics (e.g., macrolides): may affect metabolism and plasma levels.