Propecia was approved by the FDA as a prescription drug in 1997.

保法止在1997年被FDA认定为处方药.

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Propecia blocks male hormones that contribute to hair loss.

保法止阻止引起脱发的男性激素产生作用.

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Propecia blocks the formation of DHT.

保法止阻断了双氢睾酮的形成.

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Propecia is a hair loss medication for men, taken orally ( in the form of a pill ).

保法止是男性专用的口服 ( 剂 ) 发治疗药物.

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