Myoview (Tetrofosmin)

Tetrofosmin, the active ingredient in Myoview, is a radiopharmaceutical presented as an injectable solution for intravenous use. It is employed for myocardial perfusion imaging to assess regional blood flow and detect coronary artery disease in adult patients.

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

Myoview is used in cardiac diagnostic imaging to evaluate myocardial blood flow and identify ischemic regions.

- Myocardial perfusion imaging: provides quantitative assessment of regional myocardial blood flow. - Coronary artery disease detection: helps visualize perfusion defects indicative of obstructive coronary lesions. - Ischemic heart disease evaluation: supports risk stratification and management decisions in patients with suspected ischemia.

Adverse reactions may occur following administration of Myoview.

Common Side Effects: - Nausea: mild to moderate discomfort. - Flushing: transient warmth or redness. - Headache: mild to moderate intensity. - Dizziness: occasional light‑headedness. - Mild hypotension: temporary blood pressure drop. - Injection site pain: brief discomfort at the venipuncture site.

Serious or Rare Side Effects: - Anaphylactic reaction: severe allergic response requiring immediate medical attention. - Severe hypotension: marked drop in blood pressure. - Cardiac arrhythmia: abnormal heart rhythm. - Myocardial infarction: rare occurrence of heart attack. - Severe allergic reaction: including bronchospasm. - Pulmonary edema: fluid accumulation in the lungs.

Prior to Myoview administration, clinicians should consider several safety measures.

- Patient assessment: evaluate renal function and overall cardiovascular status. - Contraindications: avoid in patients with known hypersensitivity to tetrofosmin or technetium‑99m compounds. - Pregnancy: use only if the diagnostic benefit outweighs potential fetal risk. - Breastfeeding: discontinue breastfeeding or suspend the drug until cleared. - Drug interactions: review concurrent medications that may affect myocardial blood flow. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Myoview may interact with other agents that influence myocardial perfusion or radiopharmaceutical distribution.

Major Interactions (Avoid): - Amiodarone: may alter myocardial uptake of tetrofosmin. - Vasodilators (e.g., nitroglycerin): can increase redistribution and affect image interpretation. - Chemotherapeutic agents: may interfere with clearance and biodistribution.

Moderate Interactions (Monitor Closely): - Calcium channel blockers: may modestly modify perfusion patterns. - ACE inhibitors: potential effect on coronary flow. - Diuretics: possible influence on renal excretion of technetium‑99m.