Cinnarizine

Cinnarizine is a medication derivative of piperazine, and characterized as an antihistamine and a calcium channel blocker, it is also known to promote cerebral blood flow, and so is used to treat cerebral apoplexy, post-trauma cerebral symptoms, and cerebral arteriosclerosis. However, it is more commonly prescribed for nausea and vomiting due to motion sickness or other sources such as chemotherapy,vertigo, or Ménière's disease. Cinnarizine was first synthesized by Janssen Pharmaceutica in 1955. The nonproprietary name is derived from the cinnamyl substituent on one of the nitrogen atoms, combined with the generic ending "-rizine" for "antihistaminics/cerebral (or peripheral) vasodilators". It is not available in the United States or Canada. It is manufactured and marketed in Bangladesh under the trade name Suzaraon by Rephco Pharmaceuticals Limited. It has also been cited as one of the most used drugs for seasickness within the British Royal Navy.

Medical uses

Cinnarizine is predominantly used to treat nausea and vomiting associated with motion sickness,vertigo,Ménière's disease, or Cogan's syndrome. In fact, it is one of only a select few drugs that has shown a beneficial effect in the chronic treatment of the vertigo and tinnitus, associated with Meniere's disease. However, due to increased levels of drowsiness caused by the medication, it is generally of limited use in pilots and aircrew who must be dependably alert. In a clinical study (n=181), treatment with cinnarizine reduced the occurrence of moderate vertigo experience by 65.8% and extreme vertigo by 89.8%.