Use with caution during pregnancy. Acute migraine attacks with or without aura. Acute treatment of cluster headaches. Peak effect in about 2 hours after oral administration and 12 minutes after subcutaneous injection. Tingling sensation, burning sensation, a feeling of warmth, a feeling of heaviness or pressure in the head.
Some patients experience tightness in the chest.
Could precipitate a heart attack in susceptible individuals and therefore should not be given to individuals with a history of ischemic heart disease or angina. Any patients who are sensitive to sumatriptan. Like other narcotic analgesics this drug acts by stimulating opioid receptors in the brain. Treatment of moderate to moderately severe pain. Readily absorbed from the gastrointestinal tract but is significantly metabolized by the liver before reaching the systemic circulation.