Hydrophobic lubricants ( eg, magnesium stearate ) may bind to the active drug and reduce its bioavailability.

忌水性润滑剂 ( 如硬脂酸镁 ) 可与活性药物结合而降低其生物利用度.

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This is because the active drug ingredient is not dopamine itself but arious precursor molecules.

这是因为活性治疗药物成分不是多巴胺本身,而是一些前体药物.

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