Injection Manufacturer/Distributor: Renata Limited Generic Name: Neostigmine Methyl Sulphate 500 mcg/ml Injection
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Neos-R is a prescription medicine used in the treatment of myasthenia gravis (a disease causing muscle weakness and tiredness), paralytic ileus (paralysis of intestinal muscles), post-operative urinary retention and reversal of effect of skeletal muscle relaxants after surgery. Neos-R works by reducing and improving muscle weakness. It may be taken with or without food, preferably at the same time each day. Take this medicine in the dose and duration as advised by your doctor. If you have missed a dose, take it as soon as you remember. Do not skip any doses and finish the full course of treatment. You should never stop this medicine suddenly without talking to your doctor. Some common side effects of using this medication are nausea, vomiting, abdominal cramps, increased production of saliva and diarrhea. It usually does not cause dizziness and sleepiness. But, if you feel ill, avoid doing any such work that requires focus and attention, such as driving or operating any machinery. Before taking Neos-R, it is better to inform your doctor if you are suffering from any kidney problems, parkinson's disease, asthma, or stomach disorders. Your blood pressure may decrease after taking this medicine, so it is better to monitor it and consult your doctor if it bothers you. This medicine may cause diarrhea, so drink plenty of fluids to keep yourself hydrated while taking this medicine. Inform your doctor if you are pregnant, planning to conceive or breastfeeding, before taking this medicine.
Uses of Neos-R
Side effects of Neos-R
Common
How to use Neos-R
Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Neos-R may be taken with or without food, but it is better to take it at a fixed time.
How Neos-R works
Neos-R is a reversible cholinesterase inhibitor. When taken by mouth it increases the level of acetylcholine, a chemical messenger in the brain, by suppressing acetylcholinesterase (enzyme). This acetylcholine further triggers muscle contracting receptors which helps in muscle contraction.
What if you forget to take Neos-R?
If you miss a dose of Neos-R, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.
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Brief Description
Indication
Myasthenia gravis, Paralytic ileus, Post-op urinary retention, Reversal of nondepolarising neuromuscular blockade
Adult Dose
Parenteral Myasthenia gravis Adult: 0.5-2.5 mg by IM or SC inj, doses are given at intervals according to response up to a total daily dose of 5-20 mg. Paralytic ileus and postoperative urinary retention Adult: 0.5-2.5 mg by SC or IM inj, as required. Reversal of neuromuscular blockade Adult: 0.03-0.07 mg/kg by inj over 60 sec, as required. Not to exceed 0.07 mg/kg or a cumulative total of 5 mg, whichever dose is less Inject by slow IV over at least 1 minute
Child Dose
Parenteral Myasthenia gravis Child: <12 yr 0.2-0.5 mg, repeated at suitable intervals throughout the day. Paralytic ileus and postoperative urinary retention Child: 0.125-1 mg by SC or IM inj. Intravenous Reversal of neuromuscular blockade Child: 0.05-0.07 mg/kg by inj over 60 sec, as required. Intramuscular Neonatal myasthenia gravis Child: Initially, 0.1 mg, followed by 0.05-0.25 mg or 0.03 mg/kg 2-4 hrly.
Renal Dose
Renal impairment: Dose adjustment may be required.
Contraindication
Mechanical GI or urinary tract obstruction, peritonitis.
Mode of Action
Neostigmine reversibly inhibits acetylcholinesterase and thus potentiates the nicotinic and muscarinic effects of acetylcholine. This facilitates the transmission of impulses across myoneural junction.
Precaution
Patient w/ bronchial asthma, CV disorders (e.g. bradycardia, recent MI, hypotension), peptic ulcer disease, vagotonia, epilepsy, parkinsonism, hyperthyroidism. Patient who underwent recent intestinal or bladder surgery. Renal impairment. Childn. Pregnancy and lactation. Monitoring Parameters Monitor ECG, BP and heart rate esp w/ IV use. Lactation: Unknown if distributed in human breast milk; use caution
Side Effect
Allergic: Allergic reactions and anaphylaxis Neurologic: Dizziness, convulsions, loss of consciousness, drowsiness, headache, dysarthria, miosis and visual changes Cardiovascular: Cardiac arrhythmias (including bradycardia, tachycardia, A-V block and nodal rhythm) and nonspecific EKG changes have been reported, as well as cardiac arrest, syncope and hypotension (predominantly with parenteral dosage form) Respiratory: Increased oral, pharyngeal and bronchial secretions, and dyspnea; respiratory depression, respiratory arrest and bronchospasm have been reported following the use of the injectable form Dermatologic: Rash and urticaria Gastrointestinal: Nausea, emesis, flatulence, and increased peristalsis and salivation Genitourinary: Urinary frequency Musculoskeletal: Muscle cramps and spasms, arthralgia Miscellaneous: Diaphoresis, flushing and weaknes Potentially Fatal: Anaphylaxis.
Interaction
May reduce effects of anticholinergics. May increase effects of cholinergic agonists. Increased risk of bradycardia with digoxin, diltiazem, verapamil or beta-blockers without intrinsic sympathomimetic activity. Increased muscle weakness and decreased response to anticholinesterases with corticosteroids. May increase effects of depolarising neuromuscular blockers. Effects may be antagonised by drugs with neuromuscular blocking activity e.g. aminoglycosides, clindamycin, colistin, cyclopropane, halogenated inhalational anaesthetics. Effects may be reduced by quinine, chloroquine, hydroxychloroquine, quinidine, procainamide, propafenone, lithium, beta-blockers. Possible additive toxicity with ophthalmic use of anticholinesterases e.g. ecothiopate.
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