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tadalafil

[ tə-dālə-fĭl′ ]
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n.

A phosphodiesterase inhibitor drug used to treat erectile dysfunction for up to several days by increasing the level of cyclic GMP, which increases blood flow to the erectile tissues.

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QUIZ YOURSELF ON "WAS" VS. "WERE"!

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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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