米那普仑 (Savella)

概览

Milnacipran is a selective serotonin and norepinephrine reuptake inhibitor (SNRI) used for the treatment of fibromyalgia and a short-term treatment of major depressive disorder.

作用机制

The dual ability for milnacipran to inhibit the reuptake of both serotonin (5HT) and norepinephrine (NE) facilitates its treatment of both fibromyalgia and major depressive disorder (MDD). In particular, it is generally believed that 5HT and NE participate in the modulation of endogenous analgesic mechanisms by way of the descending inhibitory pain pathways in the brain and spinal cord . Although the specific mechanism of action remains unclear, some studies have proposed that low levels of 5HT may be associated with increased sensitivity to pain - a condition that could subsequently be improved by milnacipran's capacity to enhance the presence of 5HT by inhibiting its reuptake via serotonin transporters at synaptic clefts . Furthermore, in the CNS it is also generally believed that NE released from descending pathways can mitigate pain sensations via eliciting inhibitory effects on alpha-2A-adrenoceptors on central terminals of primary afferent nociceptors, by direct alpha-2-adrenergic action on pain-relay neurons, and by alpha-1-adrenoceptor-mediated activation of inhibitory interneurons . Such NE pain mitigation is consequently also enhanced by milnacipran's ability to enhance the presence of NE by inhibiting its reuptake via norepinephrine transporters at synaptic clefts . Concurrently, milnacipran's capacity to inhibit the reuptake of both 5HT and NE also facilitates its treatment of MDD. Given the monoamine hypothesis' assertion that decreased 5HT can be associated with anxiety, obsessions, compulsions, and decreased NE can result in lowered alertness, energy, attention, and general interest in life, it is proposed that milnacipran's basic activities as a serotonin and norepinephrine reuptake inhibitor could assist in treating such symptoms of MDD by increasing the presence of both 5HT and NE in the body by inhibiting their reuptake .

适应症

Milnacipran is a selective serotonin and norepinephrine reuptake inhibitor (SNRI) indicated for the management of fibromyalgia in patients that are 18 years old or above . While milnacipran may be used for the treatment of major depressive disorder (MDD), it is only recommended in adult patients who are 18 years old or above due to an increased risk for suicidal ideation, thinking, and behavior in children, adolescents, and young adults taking antidepressants for major depressive disorder (MDD) and other psychiatric disorders. Some regional prescribing information notes that the use of the medication is specifically for the short-term symptomatic relief of MDD . Nevertheless, it is important to note that the regulatory approval of and/or indications listed here for milnacipran may or may not exist and/or vary greatly between regions and nations .

• Fibromyalgia