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Fentanyl Sublingual Spray

Drug Interactions

Fentanyl sublingual spray may react with a number of other medicines (see Drug Interactions With Fentanyl Sublingual Spray).
 

What If I Overdose on This Medication?

An overdose of this medication can be quite dangerous and can even lead to death. It is important that you seek immediate medical attention if you or someone else may have overdosed on this medication.
 

What If I Miss a Dose?

Fentanyl sublingual spray is used on an as-needed basis. If you forget a dose and are in pain, just use it as soon as you remember and continue with your regular schedule. Do not use a double dose.
 
(Click Subsys Overdose for more information.)
 

How Does It Work?

Fentanyl sublingual spray contains fentanyl, a strong opioid narcotic medication. Fentanyl binds to opioid mu-receptors, which are located throughout the body. After fentanyl binds to the receptors, certain chemicals are released that produce a variety of effects.
 
Some of these effects, such as pain relief, are desirable. Others, such as slowing of the digestive tract, are undesirable and lead to side effects like constipation.
 
The effects of fentanyl include but are not limited to:
 
  • Pain relief
  • Drowsiness
  • Changes in mood, including feelings of unease (dysphoria) or unusually pleasant feelings (euphoria)
  • Cough suppression
  • Slowed or shallow breathing
  • Slowing of the digestive tract
  • Pupil constriction
  • Itching
  • Physical dependence.
 
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Fentanyl Sublingual Spray Information

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