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NNTs for two-hour pain freedom for acute migraine. ALMO = almotriptan; ASA = aspirin; DIC = diclofenac; ELE = eletriptan; FROVA = frovatriptan; IBU = ibuprofen; MET = metoclopramide; NAP = naproxen; NAR = naratriptan; NNTs = numbers needed to treat; NS = nasal spray; PCT = paracetamol; RIZ = rizatriptan; SUM = sumatriptan; ZOM = zolmitriptan.
