Myoview (Tetrofosmin)

Tetrofosmin, the active ingredient in Myoview, is a radiopharmaceutical presented as a sterile solution for intravenous injection. It is used for myocardial perfusion imaging to evaluate coronary artery disease in patients undergoing SPECT scans.

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

Myoview (tetrofosmin) is employed in nuclear cardiology to assess myocardial perfusion and coronary artery disease.

Myocardial perfusion imaging: provides visualisation of blood flow to heart muscle during stress and rest phases. Coronary artery disease evaluation: helps identify areas of reduced perfusion indicating obstructive lesions. Ischemic heart disease assessment: supports detection of reversible perfusion defects.

Adverse reactions may occur following administration of Myoview.

Common Side Effects: - Nausea: mild to moderate discomfort after injection. - Vomiting: occasional emesis within the first hour. - Headache: transient headache reported by some patients. - Transient flushing: brief warmth or redness at the injection site. - Dizziness: mild light‑headedness during or after the procedure.

Serious or Rare Side Effects: - Anaphylactic reaction: severe allergic response requiring immediate medical attention. - Severe hypotension: marked drop in blood pressure post‑administration. - Cardiac arrhythmia: abnormal heart rhythm potentially triggered by the tracer. - Radiation‑related injury: unlikely but possible with excessive exposure. - Thyroid dysfunction: rare alteration in thyroid hormone levels due to iodine content.

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

Allergy assessment: verify no known hypersensitivity to tetrofosmin or related radiopharmaceuticals. Pregnancy: avoid use unless the diagnostic benefit outweighs potential fetal radiation risk. Renal impairment: assess kidney function as reduced clearance may affect tracer distribution. Thyroid function: monitor because the compound contains iodine that can influence thyroid activity. Radiation exposure: limit to necessary diagnostic procedures and follow ALARA principles. Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Myoview may interact with other agents that influence cardiac imaging or iodine metabolism.

Major Interactions (Avoid): - Concurrent radiopharmaceuticals: may interfere with image interpretation. - Beta‑blockers: can blunt stress‑induced heart rate response, affecting perfusion results. - Thyroid hormone therapy: may alter iodine uptake and distribution.

Moderate Interactions (Monitor Closely): - Caffeine intake: can affect coronary vasodilation and perfusion imaging accuracy. - Nitrates: may modify coronary blood flow and impact tracer distribution.