5HT1 agonist

any one of a class of drugs that stimulate SEROTONIN receptors and are effective in the treatment of MIGRAINE by rapidly reversing the dilatation of blood vessels in the head that causes the migraine headache. The group includes almotriptan (Almogran), naratriptan (Naramig), SUMATRIPTAN , and zolmitriptan (Zomig).