Suminat Nasal Spray is a medicine used in the treatment of migraine. It relieves the symptoms of migraine and prevents the attack from becoming worse. It works by narrowing the blood vessels in the head and stopping the transmission of pain signals. However, it does not prevent future migraines attacks. Suminat Nasal Spray should be used as you have been advised by your doctor. Normally you should blow your nose gently before using it, keep one nostril closed while applying the medicine into the other, and then sniff hard to make sure it reaches deep into the nose. Use it regularly for as long as it has been prescribed. However, do not use it too often or longer than you have been prescribed. Common side effects of this medicine include burning sensation, nasal discomfort, throat irritation, nausea, vomiting, taste change, dizziness, and vertigo. It may also cause sleepiness apart from dizziness in the initial phase of your treatment, so do not drive, operate machinery, until you know how this medicine affects you. Inform your doctor if you are suffering from any heart problems, as the use of Suminat Nasal Spray is contraindicated in some heart diseases. Regular monitoring of blood pressure is required while taking this medicine. Consult your doctor and stop this medicine if you develop severe chest or stomach pain, bloody diarrhea, or significantly high blood pressure, after taking this medicine. Pregnant or breastfeeding mothers should consult their doctor before taking this medicine.