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Scientific Name: Isometheptene
Brand Name: Not Available
Company Owner: Not Available
Mechanism Of Action Isometheptene’s vasoconstricting properties arise through activation of the sympathetic nervous system via epinephrine and norepinephrine (or their molecular analogues as is the case with this drug) . These compounds elicites smooth muscle activation leading to vasoconstriction. These compounds interact with cell surface adrenergic receptors. Such stimuli result in a signal transduction cascade that leads to increased intracellular calcium from the sarcoplasmic reticulum through IP3 mediated calcium release, as well as enhanced calcium entry across the sarcolemma through calcium channels. The rise in intracellular calcium complexes with calmodulin, which in turn activates myosin light chain kinase. This enzyme is responsible for phosphorylating the light chain of myosin to stimulate cross bridge cycling.
Description of the Drug: Isometheptene is a sympathomimetic used to relieve painful spasms in combination with other agents such as caffeine and metamizole.
Protein Data Bank: Not Available
Source: DrugBank Online – Retrieved 2023-01-23 from