Neostigmine Methyl Sulphate is indicated for–
- Reversal of nondepolarising neuromuscular blockade for surgical anesthetic procedures
- The prevention and treatment of post-operative abdominal distention and urinary retention after mechanical obstruction has been excluded.
- Treatment of the systemic control of Myasthenia Gravis when oral therapy is impractical.
Dosage & Administration
Reversal of the effects of Non-depolarizing Neurormuscular Blocking Agents: The usual dose is 0.5 to 2 mg given by slow intravenous injection over 60 seconds; repeated as required. Total dose should not exceed 5 mg (in exceptional cases). When Neostigmine is administered intravenously, it is recommended that Atropine Sulphate (0.6-1.2 mg) also be given intravenously using separate syringe.
Prevention of post-operative abdominal distention and urinary retention: 0.25 mg intramuscularly or subcutaneously as soon as possible after operation; repeat every 4 6 hours for 2-3 days.
Treatment of post-operative abdominal distention: 0.5 mg intramuscularly or subcutaneously or as required.
Treatment of urinary retention: 0.5 mg intramuscularly or subcutaneously. If urination does not occur within an hour, the patient should be catheterized. After the patient has voided, or the bladder has been emptied, continue the 0.5 mg injection every 3 hours, for at least 5 injections.
Symptomatic control of Myasthenia Gravis: 0.5 mg intramuscularly or subcutaneously. Subsequent dose should be based on the individual patient’s response.
Neonates: 50-250 micrograms (0.1 to 0.5 ml) every 4 hours.
Children: 200-500 micrograms (0.4 ml to 1 ml) as recommended.
Pregnancy & Lactation
Pregnancy Category C. There are no adequate or well-controlled studies of Neostigmine in either laboratory animals or in pregnantwomen. It is not known whether Neostigmine can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. Neostigmine should be given to a pregnant woman only if clearly needed.
Nonteratogenic Effects: Anticholinesterase drugs may cause uterine irritability and induce premature labor when given intravenously to pregnant women near term.
Nursing Mothers: It is not known whether Neostigmine is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions from Neostigmine in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.