Sumatriptan (trade names Imitrex , Imigran , Imigran recovery ) is a triptan drug including a sulfonamide group for the treatment of migraine headaches . It is marketed and manufactured by GlaxoSmithKline . よりたくさんの

Sumatriptan (trade names Imitrex , Imigran , Imigran recovery ) is a triptan drug including a sulfonamide group for the treatment of migraine headaches . It is marketed and manufactured by GlaxoSmithKline .

Several dosage forms for sumatriptan have been approved, including tablets , solution for injection , and nasal inhalers . Sumatriptan was the first triptan available (in 1991), and, in the United States and most developed countries, is available only by medical prescription. In the United Kingdom, sumatriptan is available over the counter , under the name Imigran Recovery. It is sold in packs of two 50mg tablets for approximately £7.99 (about $15 US). Larger pack sizes, the nasal spray, and the liquid preparation for injection are still only available by prescription.It is marketed as a name of IMIGRAN Recovery. Originally covered by UK Patent GB2162522 , extended by supplementary protection certificate SPC/GB93/071, protection in the UK (as well as the rest of Europe), expired on 16 May 2006. Through patent litigation, Glaxo was able to extend their US patent considerably beyond this date. However, as the result of a lawsuit by the maker of a generic version of the injectable version of Imitrex, a settlement should allow this generic to come to the market in the US in August 2008. less