Eletriptan, sold under the brand name Relpax and used in the form of eletriptan hydrobromide, is a second generation triptan medication intended for treatment of migraine headaches. It is used as an abortive medication, blocking a migraine attack which is already in progress. Eletriptan is marketed and manufactured by Pfizer Inc.

Approval and availability
Eletriptan was approved by the US Food and Drug Administration (FDA) on December 26, 2002, for the acute treatment of migraine with or without aura in adults. It is available only by prescription in the United States and Canada. It is not intended for the prophylactic therapy of migraine or for use in the management of hemiplegic or basilar migraine. It is available in 20 mg and 40 mg strengths. Eletriptan was covered by U.S. Patent no. 5545644 and U.S. Patent  no. 6110940;  both now expired. Mechanism of action
Eletriptan is believed to reduce swelling of the blood vessels surrounding the brain. This swelling is associated with the head pain of a migraine attack. Eletriptan blocks the release of substances from nerve endings that cause more pain and other symptoms like nausea, and sensitivity to light and sound. It is thought that these actions contribute to relief of symptoms by eletriptan. Eletriptan is a serotonin receptor agonist, specifically an agonist of certain 5-HT1 family receptors. Eletriptan binds with high affinity to the 5-HT[1B, 1D, 1F] receptors. It has a modest affinity to the 5-HT[1A, 1E, 2B, 7] receptors, and little to no affinity at the 5-HT[2A, 2C, 3, 4, 5A, 6] receptors.
History
Lumacaftor/ivacaftor was approved by the FDA in July 2015 under breakthrough therapy status and under a priority review. Previously approved for adults and pre-teens, approved on 8-7-18 for children age 2–5. Society and culture
As of March 2016 the combination drug cost $259,000 a year in the United States.In Denmark, it was estimated in August 2015 that if the drug were introduced, the cost would amount to 2 million Danish krones (approximately 270,000 euro) each year per person.The Dutch Minister of Health announced in October 2017 that the drug would not be admitted to the public health insurance package, making it impossible to have treatment with the drug covered by Dutch health insurance. The minister stated that the price for the drug, negotiated to 170,000 euro per patient per year, is "unacceptably high in relation to the relatively modest effect, as determined by the (Dutch) Healthcare Institute". Approximately 750 patients are affected by this decision. On 25 October, the Dutch Minister of Health announced that an agreement had been brokered with Vertex Pharmaceuticals, the company that manufactures the drug, resulting in admittance to the Dutch public health insurance package. Part of the agreement is that the result of the negotiation about the price of the treatment will not be disclosed.Protracted discussions within the United Kingdom were brought to a conclusion in September and October 2019 as NHS Scotland and NHS England both struck deals with Vertex respectively.