Anaphylactic, anaphylactoid & hypersensitivity reactions, particularly patients w/ known hypersensitivity to sulphonamides. Not to be used for prophylaxis. Excessive use of drugs (≥10 days/mth) for acute migraine attacks. Patients w/ controlled HTN & BP; history of epilepsy or other conditions predisposing to seizures. Exclude other potentially serious neurologic conditions before initiation of therapy in patients not previously diagnosed w/ migraine attacks & w/ history of migraine presenting w/ atypical symptoms. Consider CV evaluation prior to initiation of therapy in patients w/ multiple CV risk factors eg, postmenopausal women, men >40 yr, patients w/ risk factors (eg, HTN, hypercholesterolemia, obesity, diabetes, smoking, or history of CAD) who have not previously received therapy w/ 5-HT
1 receptor agonist; periodic interval CV evaluation in patients w/ intermittent long-term use of 5-HT
1 agonist. Concomitant use w/ SSRIs (eg, fluoxetine, fluvoxamine, paroxetine, sertraline) or SNRIs (eg, duloxetine). May impair ability to drive & operate machines. Renal impairment. Mild to moderate hepatic impairment. Pregnancy. Avoid breastfeeding for 12 hr after receiving treatment. Childn & adolescents <18 yr. Elderly >65 yr.