Neostigmine

Neostigmine is a parasympathomimetic medication that acts as a reversible acetylcholinesterase inhibitor. By preventing the breakdown of acetylcholine, it increases the concentration of the neurotransmitter at the neuromuscular junction, facilitating muscle contraction and reversing muscle relaxants used during anesthesia.

Dosage by Body Weight

Dosage must be strictly individualized. For surgical reversal of neuromuscular blockade, it is administered intravenously by healthcare professionals, typically paired with an anticholinergic agent (such as glycopyrrolate or atropine) to prevent bradycardia. For myasthenia gravis, oral dosing is titrated based on patient response.

  1. Body Weight
    Below 5 kg
    Dose
    0.03 to 0.07 mg/kg intravenously
    Frequency
    Single dose under clinical monitoring
    Tracking Notes
    Must be co-administered with an anticholinergic agent to mitigate cholinergic side effects. Administered by professionals only.
  2. Body Weight
    5-7 kg
    Dose
    0.15 mg to 0.49 mg intravenously
    Frequency
    Single dose under clinical monitoring
    Tracking Notes
    Calculated based on 0.03-0.07 mg/kg. Requires continuous cardiac monitoring.
  3. Body Weight
    8-10 kg
    Dose
    0.24 mg to 0.7 mg intravenously
    Frequency
    Single dose under clinical monitoring
    Tracking Notes
    Ensure atropine or glycopyrrolate is available and administered to manage bradycardia.
  4. Body Weight
    11-15 kg
    Dose
    0.33 mg to 1.05 mg intravenously
    Frequency
    Single dose under clinical monitoring
    Tracking Notes
    Dose titrated to response using a peripheral nerve stimulator.
  5. Body Weight
    16-20 kg
    Dose
    0.48 mg to 1.4 mg intravenously
    Frequency
    Single dose under clinical monitoring
    Tracking Notes
    Ensure adequate recovery of neuromuscular function is verified before extubation.

Formulation

InjectionTablet

Purpose

Reversal of non-depolarizing neuromuscular blockade after surgery, treatment of myasthenia gravis, and prevention or treatment of postoperative abdominal distention and urinary retention.

Generic Name

Neostigmine

Branded Drug Names

Neostigmine is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Scheduled Drug

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.