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The drugs of this class act as agonists for serotonin 5-HT 1B and 5-HT 1D receptors at blood vessels and nerve endings in the brain. The first clinically available triptan was sumatriptan, which has been marketed since 1991. Triptans have largely replaced ergotamines, an older class of medications used to relieve migraine and cluster headaches. [3]
Sumatriptan's primary therapeutic effect is related in its inhibition of the release of calcitonin gene-related peptide (CGRP), likely through its 5-HT 1D/1B receptor-agonist action. [18] This has been substantiated by the efficacy of more recently developed CGRP targeting drugs and antibodies developed for the preventive treatment of migraine ...
Like all triptans, almotriptan has a high and specific affinity for serotonin 5-HT 1B/1D receptors. Binding of the drug to the receptor leads to vasoconstriction of the cranial (brain) blood vessels and thus affects the redistribution of blood flow. Almotriptan significantly increases cerebral blood flow and reduces blood flow through ...
Triptans are a family of tryptamine-based drugs used as abortive medication in the treatment of migraines and cluster headaches. They are selective 5-hydroxytryptamine/serotonin 1B/1D (5-HT 1B/1D) agonists. [1] Migraine is a complex disease which affects about 15% of the population and can be highly disabling. [2]
This medication class targets the CGRP receptor pathway due to their likeness to serotonin, dopamine and noradrenaline. They show activity at serotonin 5-HT 1-2, dopamine D2-like and alpha1/alpha2-adrenoreceptors. [4] Their lack of selectivity leads to more adverse effects, making them second line compared to triptans. [4]
Rescue treatment involves acute symptomatic control with medication. [4] Recommendations for rescue therapy of migraine include: (1) migraine-specific agents such as triptans, CGRP antagonists, or ditans for patients with severe headaches or for headaches that respond poorly to analgesics, (2) non-oral (typically nasal or injection) route of administration for patients with vomiting, (3) avoid ...
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