May 11, 2016
API: Betahistine
EP Impurity B
2-(pyridin-2-yl)ethanol Betahistine
EP Impurity A
2-ethenylpyridine (2-vinylpyridine)
Betahistine dihydrochloride (brand names Veserc, Serc, Hiserk, Betaserc, Vergo) is an anti-vertigo drug. It is commonly prescribed for balance disorders or to alleviate vertigo symptoms associated with Ménière's disease.
Us Chemists are a strange bunch. We like things pure. Purity is good. If something is pure we know what we have. We like this!
On the other-hand, we like impurities. It is why we put salt in our water when we boil potatoes. The salt is an impurity and it increases the boiling point of water. The water can reach a higher temperature before boiling and our potatoes cook faster.
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