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ENLON
Overview
What is ENLON?
ENLON is a short and rapid-acting cholinergic drug. Chemically, edrophonium chloride is ethyl(m-hydroxyphenyl) dimethylammonium
chloride and its structural formula is:
Each mL contains, in a sterile solution, 10 mg edrophonium chloride compounded with 0.45% phenol as a preservative, and 0.2% sodium
sulfite as an antioxidant, buffered with sodium citrate and citric acid, and pH adjusted to approximately 5.4.
ENLON is intended for IV and IM use.
What does ENLON look like?

What are the available doses of ENLON?
Sorry No records found.
What should I talk to my health care provider before I take ENLON?
Sorry No records found
How should I use ENLON?
Sorry No records found
What interacts with ENLON?
Known hypersensitivity to anticholinesterase agents; intestinal and urinary obstructions of mechanical type.
What are the warnings of ENLON?
Codeine is habit-forming and potentially abusable. Consequently, the extended use of this product is not recommended.
Whenever anticholinesterase drugs are used for testing, a syringe containing 1 mg of atropine sulfate should be immediately
available to be given in aliquots intravenously to counteract severe cholinergic reactions which may occur in the hypersensitive individual, whether he is normal or myasthenic. ENLON
should be used with caution in patients with bronchial asthma or cardiac dysrhythmias. The transient bradycardia which sometimes occurs can be relieved by atropine sulfate. Isolated
instances of cardiac and respiratory arrest following administration of ENLON have been reported. It is postulated that these are vagotonic effects.
Contains sodium sulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or
less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is
seen more frequently in asthmatic than in nonasthmatic people.
Usage in Pregnancy
The safety of ENLON during pregnancy or lactation in humans has not been established. Therefore, use of ENLON in women who may
become pregnant requires weighing the drug’s potential benefits against its possible hazards to mother and child.
What are the precautions of ENLON?
Patients may develop “anticholinesterase insensitivity” for brief or prolonged periods. During these periods the patients should be
carefully monitored and may need respiratory assistance. Dosages of anticholinesterase drugs should be reduced or withheld until patients again become sensitive to them.
What are the side effects of ENLON?
Careful observation should be made for severe cholinergic reactions in the hyperreactive individual. The myasthenic patient in
crisis who is being tested with ENLON should be observed for bradycardia or cardiac standstill and cholinergic reactions if an overdose is given.
The following reactions common to anticholinesterase agents may occur, although not all of these reactions have been reported with
the administration of ENLON, probably because of its short duration of action and limited indications:
Eye: | Increased lacrimation, pupillary constriction, spasm of accommodation, diplopia, conjunctival hyperemia. | |
CNS: | Convulsions, dysarthria, dysphonia, dysphagia. | |
Respiratory: | Increased tracheobronchial secretions, laryngospasm, bronchiolar constriction, paralysis of muscles of respiration, central respiratory paralysis. | |
Cardiac: | Arrhythmias (especially bradycardia), fall in cardiac output leading to hypotension. | |
G.I.: | Increased salivary, gastric and intestinal secretion, nausea, vomiting, increased peristalsis, diarrhea, abdominal cramps. | |
Skeletal Muscle: | Weakness, fasciculations. | |
Miscellaneous: | Increased urinary frequency and incontinence, diaphoresis. |
What should I look out for while using ENLON?
Known hypersensitivity to anticholinesterase agents; intestinal and urinary obstructions of mechanical type.
Whenever anticholinesterase drugs are used for testing, a syringe containing 1 mg of atropine sulfate should be immediately
available to be given in aliquots intravenously to counteract severe cholinergic reactions which may occur in the hypersensitive individual, whether he is normal or myasthenic. ENLON
should be used with caution in patients with bronchial asthma or cardiac dysrhythmias. The transient bradycardia which sometimes occurs can be relieved by atropine sulfate. Isolated
instances of cardiac and respiratory arrest following administration of ENLON have been reported. It is postulated that these are vagotonic effects.
Contains sodium sulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or
less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is
seen more frequently in asthmatic than in nonasthmatic people.
What might happen if I take too much ENLON?
With drugs of this type, muscarine-like symptoms (nausea, vomiting, diarrhea, sweating, increased bronchial and salivary secretions
and bradycardia) often appear with overdosage (cholinergic crisis). An important complication that can arise is obstruction of the airway by bronchial secretions. These may be managed
with suction (especially if tracheostomy has been performed) and by the use of atropine. Many experts have advocated a wide range of dosages of atropine (for ENLON, see atropine dosage
below), but if there are copious secretions, up to 1.2 mg intravenously may be given initially and repeated every 20 minutes until secretions are controlled. Signs of atropine overdosage
such as dry mouth, flush and tachycardia should be avoided as tenacious secretions and bronchial plugs may form. A total dose of atropine of 5 to 10 mg or even more may be required. The
following steps should be taken in the management of overdosage of ENLON:
How should I store and handle ENLON?
ENLON (edrophonium chloride injection, USP):ENLON (edrophonium chloride injection, USP) should be stored at controlled room temperature 15º-30ºC (59º-86ºF).ENLON (edrophonium chloride injection, USP):ENLON (edrophonium chloride injection, USP) should be stored at controlled room temperature 15º-30ºC (59º-86ºF).
Clinical Information
Chemical Structure
No Image foundClinical Pharmacology
Non-Clinical Toxicology
Known hypersensitivity to anticholinesterase agents; intestinal and urinary obstructions of mechanical type.Whenever anticholinesterase drugs are used for testing, a syringe containing 1 mg of atropine sulfate should be immediately available to be given in aliquots intravenously to counteract severe cholinergic reactions which may occur in the hypersensitive individual, whether he is normal or myasthenic. ENLON should be used with caution in patients with bronchial asthma or cardiac dysrhythmias. The transient bradycardia which sometimes occurs can be relieved by atropine sulfate. Isolated instances of cardiac and respiratory arrest following administration of ENLON have been reported. It is postulated that these are vagotonic effects.
Contains sodium sulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is seen more frequently in asthmatic than in nonasthmatic people.
Metronidazole has been reported to potentiate the anticoagulant effect of warfarin and other oral coumarin anticoagulants, resulting in a prolongation of prothrombin time. This possible drug interaction should be considered when metronidazole is prescribed for patients on this type of anticoagulant therapy.
The simultaneous administration of drugs that induce microsomal liver enzymes, such as phenytoin or phenobarbital, may accelerate the elimination of metronidazole, resulting in reduced plasma levels; impaired clearance of phenytoin has also been reported.
The simultaneous administration of drugs that decrease microsomal liver enzyme activity, such as cimetidine, may prolong the half-life and decrease plasma clearance of metronidazole. In patients stabilized on relatively high doses of lithium, short-term metronidazole therapy has been associated with elevation of serum lithium and, in a few cases, signs of lithium toxicity. Serum lithium and serum creatinine levels should be obtained several days after beginning metronidazole to detect any increase that may precede clinical symptoms of lithium intoxication.
Alcoholic beverages should not be consumed during metronidazole therapy and for at least one day afterward because abdominal cramps, nausea, vomiting, headaches, and flushing may occur.
Psychotic reactions have been reported in alcoholic patients who are using metronidazole and disulfiram concurrently. Metronidazole should not be given to patients who have taken disulfiram within the last two weeks.
Patients may develop “anticholinesterase insensitivity” for brief or prolonged periods. During these periods the patients should be carefully monitored and may need respiratory assistance. Dosages of anticholinesterase drugs should be reduced or withheld until patients again become sensitive to them.
Careful observation should be made for severe cholinergic reactions in the hyperreactive individual. The myasthenic patient in crisis who is being tested with ENLON should be observed for bradycardia or cardiac standstill and cholinergic reactions if an overdose is given.
The following reactions common to anticholinesterase agents may occur, although not all of these reactions have been reported with the administration of ENLON, probably because of its short duration of action and limited indications:
Reference
This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"
While we update our database periodically, we cannot guarantee it is always updated to the latest version.
Review
Professional
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Tips
Interactions
Interactions
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