What do you know about the migraine drug Imitrex?

These drugs have been available only by prescription (US, Canada and UK), but sumatriptan became available over-the-counter in the U.K in June, 2006. The brand name of the OTC product in the UK is Imigran Recovery. Injectable sumatriptan should be available in generic formula in early 2007 as the patent on Imitrex STATDose expires in December, 2006. The patent on Imitrex tablets expires in the USA in 2009, and the generic sumatriptan tablets should be available shortly thereafter. Many migraine sufferers do not use them only because they have not sought treatment from a physician, but others don't because they know that they can't afford them at current prescription prices.