4: Central nervous system

tablets 500microgram, 1.5mg; elixir 250micrograms/5ml: initially 500micrograms at night increased gradually to usual dose of 1.5mg at night or in 3 divided doses, may be further increased up to max daily dose 4.5mg, max single dose 3mg. Prescribing notes. Ensure diagnosis of migraine is correct. ................
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