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<h3>Overview</h3>
<p>Flunarizine is a selective calcium channel blocker used in neurology. It features the molecular formula <strong>C<sub>26</sub>H<sub>26</sub>ClF<sub>2</sub>N<sub>2</sub></strong> and CAS No. <strong>4709-15-5</strong>. The core synthesis involves condensation of cinnamaldehyde with p-fluorobenzaldehyde derivatives.</p>
<h3>Application</h3>
<ul>
<li>Vascular prophylaxis for migraine and vertigo disorders.</li>
<li>Treatment of chronic cerebral insufficiency symptoms.</li>
<li>Adjunct therapy in peripheral arterial occlusive diseases.</li>
</ul>
<h3>Precautions</h3>
<p>Contraindicated in patients with depression or parkinsonism. Store in cool, dry conditions away from light to maintain chemical stability and prevent degradation.</p>