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Nimodipine (marketed by Bayer as Nimotop®) is a dihydropyridine calcium channel blocker originally developed for the treatment of high blood pressure. These are non oft utilized for this indication, however has shown practiced resolutions inside preventing the major complication of subarachnoid hemorrhage (a form of cerebral hemorrhage) termed vasospasm; this is now a main have of nimodipine.
Dosage
A regular dose is Lx mg tablets fourfold daily. In case a patient is unable to require tablets orally, these are given via intravenous infusion at a rate of Nought.Five-One mg/hour (lower dose in case a immune system weight is <70 kg or blood pressure is too low).
Usage
Because it has occasionally selectivity for cerebral vasculature, nimodipine's independent utilize is in the bar of cerebral vasospasm and resultant ischemia, a complication of subarachnoid hemorrhage (a form of cerebral bleed). Its administration begins inside Four years of the subarachnoid bleeding & is continued for triplet weeks. Whenever blood pressure drops by over 5%, dose is adjusted. There exists however disputatiin on the utilize of endovenous nimodipine on a routine basis (Allen et al 1983, Janjua & Mayer 2003).
The 2003 test (Belfort et al) obtained nimodipine was inferior to magnesium sulfate in preventing seizures in women using severe preeclampsia.
Mode of action
Nimodipine binds specifically to L-nature and severity voltage-gated ca trend lines. There come many theories just about its mechanism around preventing vasospasm, however none are conclusive.
Contraindications & side-effects
Nimodipine is associated by owning low blood pressure, flushing & sweating, dropsy, infection and more gi problems. These are contraindicated in unstable angina or an episode of myocardial infarction more recent than one year.
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