Migranil EC 1mg/100mg Tablet is a prescription medication indicated for the treatment of migraine attacks. Each tablet contains ergotamine tartrate (1mg) and caffeine (100mg) as its active pharmaceutical ingredients. Ergotamine, a potent vasoconstrictor, selectively constricts blood vessels, thereby reducing blood flow to the affected area and alleviating migraine-related symptoms. Caffeine, a mild stimulant, enhances the efficacy of ergotamine by augmenting its vasoconstrictive effects. Migranil EC is designed to provide rapid relief from migraine symptoms, including headache, photophobia, and phonophobia. The recommended adult dose is one tablet, taken orally, as needed, up to a maximum of three tablets in a 24-hour period. Due to the potential for rebound headaches and other adverse effects, the medication should be used with caution and under the guidance of a healthcare professional. As with any medication, patients should be aware of the potential risks and benefits and monitor their symptoms carefully.