Therapy for migraine can be classified as preventive or acute. Preventive t
herapy is intended to reduce the frequency of headache, whereas the goal of
acute migraine therapy is to optimize the patient's ability to function by
reversing, aborting, or reducing pain and migraine-associated symptoms. Ri
zatriptan is a new, selective 5-HT1B/1D receptor agonist that is effective
for treatment of migraine. Clinical studies of this drug have demonstrated
its efficacy, safety, and tolerability when used as therapy for acute attac
ks on multiple occasions.