Flumazenil Hameln

Flumazenil is used to fully or partly reverse the sedating effects of benzodiazepines, helping patients wake up after sedation or recover from an overdose.

Form
injektio-/infuusioneste, liuos
Strength
0.1 mg/ml
Active Ingredient
Flumazenil
Manufacturer
Hameln Pharma GmbH

How to Use

Dosage

The usual starting dose is 0.2 mg given into a vein over 15 seconds, and additional doses can be given if needed.

Method

This medicine is given as an injection or infusion into a vein by a doctor or nurse.

Important

For adults, the maximum dose is usually 1 mg (in anesthesia) or 2 mg (in intensive care); for children, it's up to 1 mg or 0.05 mg/kg, whichever is lower.

Possible Side Effects

COMMON
  • Nausea
  • Allergic reactions
  • Mood changes
  • Insomnia
  • Drowsiness
  • Dizziness
  • Headache
  • Trembling or shaking
  • Dry mouth
  • Fast breathing (hyperventilation)
  • Speech disorder
  • Strange skin sensations (e.g., pins and needles, cold, warmth, pressure)
  • Double vision or squinting
  • Increased tear production
  • Flushing (redness of the skin)
  • Low blood pressure when standing up
  • Temporary high blood pressure
  • Vomiting
  • Hiccups
  • Sweating
  • Pain at the injection site
  • Anxiety (after rapid injection)
  • Agitation or restlessness (after rapid injection)
  • Palpitations (fast or irregular heartbeat after rapid injection)
RARE
  • Fear
  • Convulsions or seizures
  • Abnormal hearing
  • Fast or slow heartbeat
  • Extra heartbeats
  • Shortness of breath
  • Cough
  • Stuffy nose
  • Chest pain
  • Chills
  • Severe allergic reaction (e.g., swelling of lips, face, throat, difficulty breathing)
  • Withdrawal symptoms (anxiety, confusion, hallucinations, tremors, panic attacks, aggression) in long-term benzodiazepine users
  • Unusual crying, agitation, and aggression in children

Important Warnings

  • Do not use if you are allergic to flumazenil or any other ingredients in this medicine.
  • Do not use if benzodiazepines were used for life-threatening conditions, such as high brain pressure or severe epileptic seizures.
  • Tell your doctor if you have epilepsy and have used benzodiazepines for a long time, as flumazenil can cause seizures.
  • Inform your doctor if your liver is not working well.
  • Tell your doctor if you have a severe head injury or high brain pressure, as flumazenil can increase brain pressure.
Show 6 more warnings
  • If you have a history of anxiety or panic attacks, flumazenil may cause new attacks.
  • If you have used benzodiazepines for a long time or in high doses, a rapid flumazenil injection can cause withdrawal symptoms.
  • If you are dependent on alcohol or sleeping pills, you have a higher risk of withdrawal symptoms.
  • The sedating effect of the medicine might return, so you will be monitored until the effect has completely worn off.
  • Do not drive or operate machinery for 24 hours after receiving this medicine.
  • Do not breastfeed for 24 hours after receiving this medicine.