Propranolol (Inderol) is a drug used in treating restlessness and tremors. This is sometimes used, along with antipsychotics, in treating schizophrenia.
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... trinomial of the form x2 + 2xy + y2. Since "2xy" in this case is (b/a)x, we must have y = b/(2a), so we add the square of b/(2a) to both sides, ...