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I have just started taking venafaxine 37.5 how long is before it starts to work?

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WildcatVet 10 Feb 2017

Hi, Tina! Some people report improvement in as little as two weeks or so but generally it takes three to four weeks for significant improvement and six to eight weeks to reach therapeutic blood levels.
You're on the initial loading dosage so you may find that your doctor increases your dose after a few weeks.
Best regards and good luck to you. Wildcat

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