Rapifen

Rapifen is a strong pain medicine used in hospitals to help with anesthesia and ease pain during operations.

Form
injektioneste, liuos
Strength
0.5 mg/ml
Active Ingredient
Alfentanil hydrochloride
Manufacturer
Piramal Critical Care B.V.

How to Use

Dosage

A doctor will decide your dose based on your age, weight, health, other medicines, and the type and length of your surgery.

Method

This medicine is given into a vein by a doctor or nurse.

Important

Your doctor will decide the highest amount of medicine you can get each day.

Possible Side Effects

COMMON
  • Feeling sick to your stomach (nausea)
  • Throwing up (vomiting)
  • Slow, weak, or temporary stopping of breathing
  • Stiff muscles or jerky movements
  • Slow, fast, or uneven heartbeat
  • Hiccups
  • Tightness or spasms in your airways or throat
  • Sweating
  • Low or high blood pressure
  • Feeling dizzy
RARE
  • Heart or breathing stopping completely
  • Feeling cold and shivering (chills)
  • Feeling very tired
  • Fever
  • Headache
  • Feeling sleepy
  • Not responding to touch or sounds
  • Passing out (loss of consciousness)
  • Seizures or fits
  • Feeling restless or upset (agitation)
  • Crying more than usual
  • Feeling confused about where you are or what time it is (disorientation)
  • Feeling of great happiness or well-being (euphoria)
  • Feeling calm or sleepy due to medicine (sedation)
  • Nosebleed
  • Cough
  • Too much carbon dioxide in your blood
  • Problems with your vision
  • Small pupils (the black part in the middle of your eye)
  • Allergic skin rash
  • Itching
  • Redness of the skin
  • Skin rash
  • Shortness of breath (may be a sign of allergy)
  • Swelling of the face (may be a sign of allergy)

Important Warnings

  • Do not use Rapifen if you are allergic to alfentanil, other strong pain medicines (opioids), or any other part of this medicine.
  • Tell your doctor or nurse if you have an untreated thyroid problem (underactive thyroid).
  • Tell your doctor or nurse if you have a lung disease or breathing problems.
  • Tell your doctor or nurse if you have liver or kidney problems.
  • Tell your doctor or nurse if you or a family member has ever misused alcohol, prescription medicines, or illegal drugs, or have been dependent on them.
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  • Tell your doctor or nurse if you smoke.
  • Tell your doctor or nurse if you have ever had mood problems (like depression or anxiety) or if a mental health doctor has treated you for other mental health issues.
  • This medicine is an opioid. Using strong pain medicines like this often can make them work less well over time. It can also cause you to become dependent on it or misuse it, which could lead to a life-threatening overdose. If you are worried about becoming dependent on Rapifen, talk to your doctor.
  • Rapifen can cause trouble breathing, especially in babies and very young children. Their breathing will be watched closely during and after surgery. Your doctor may give other medicines to stop muscles from getting stiff. Tell your doctor if you are pregnant, think you might be pregnant, or are breastfeeding.
  • Do not drive or use heavy machines for at least 24 hours after you receive Rapifen.