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What happens when fentanyl 50mg kicks in?

1 doctor weighed in
Dr. Harry Kwak
Anesthesiology

In brief: Pain relief

Fentanyl works on pain receptors.
Its primary use is to alleviate pain. How fast it works depends on how it is given (IV, IM, transdermal). I'll assume you are referring to IV. Works in 1-5 mins, lasts ~ 45-90 mins. Some very serious, but expected side effects include slowed or even stopped breathing, low blood pressure, sedation. Expect excellent pain relief with Fentanyl when used properly

In brief: Pain relief

Fentanyl works on pain receptors.
Its primary use is to alleviate pain. How fast it works depends on how it is given (IV, IM, transdermal). I'll assume you are referring to IV. Works in 1-5 mins, lasts ~ 45-90 mins. Some very serious, but expected side effects include slowed or even stopped breathing, low blood pressure, sedation. Expect excellent pain relief with Fentanyl when used properly
Dr. Harry Kwak
Dr. Harry Kwak
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