Undesirable effects are not expected in normal conditions of treatment.
Undesirable effects may result from an excess or deficit of one or more of the ions present in the solution; therefore, frequent monitoring of electrolyte levels is essential. The physician should also be alert to the possibility of adverse reactions to drug additives. Prescribing information for drug additives to be administered in this manner should be consulted. Injudicious intravenous sodium chloride therapy (e.g. post-operatively and in patients with impaired cardiac or renal function) may cause hypernatraemia. Osmotically induced water shifts decrease intracellular volume, resulting in dehydration of internal organs, especially the brain, which may lead to thrombosis and haemorrhage.
If administered sub-cutaneously, any addition to the isotonic solution could render it hypertonic and cause pain at the site of injection.
Administration of large doses may give rise to sodium accumulation, oedema, and hyperchloraemic acidosis.
If an adverse reaction does occur during administration, discontinue the infusion, evaluate the patient, institute appropriate therapeutic countermeasures.
The displayed frequency categories use the following convention: Very common (≥ 1/10); common (≥ 1/100 to < 1/10); uncommon (≥ 1/1,000 to < 1/100); rare (≥ 1/10,000 to <1/1,000); very rare (<1/10,000), not known (cannot be estimated form the available data). The following adverse reactions are those that may result in an excess of sodium or chloride due to overdose, or may be due to administration technique. The frequency of these side effects is not known (it can be seen in as few patients as cannot be identified with the available data).
Blood and lymphatic system disorders
Not known: Thrombosis; hemorrhage
Metabolism and nutrition disorders
Not known: Sodium accumulation; Water retention and edema; Exacerbation of congestive heart failure (due to hypernatremia); Hyperchloremic acidosis.
Nervous system disorders
Not known: Headache, dizziness, restlessness, irritation, convulsions, coma and death (dehydration of the brain associated with hypernatremia).
Cardiac disorders
Not known: Tachycardia (associated with hypernatremia).
Vascular disorders
Not known: Hypertension (associated with hypernatremia).
Respiratory, thoracic and mediastinal disorders
Not known: Pulmonary edema, respiratory depression and respiratory arrest (associated with hypernatremia).
Gastrointestinal disorders
Not known: Nausea, vomiting, diarrhea, abdominal cramps, feeling of thirst, decreased salivation (associated with hypernatremia).
Skin and subcutaneous tissue disorders
Not known: Decreased perspiration (associated with hypernatremia).
Musculoskeletal and connective tissue disorders
Not known: Muscle twitching and rigidity (associated with hypernatremia).
Renal and urinary disorders
Not known: Renal failure (associated with hypernatremia)
General disorders and administration site conditions
Not known: Fever; Fatigue (due to hypernatremia); Pain at the injection site (due to subcutaneous administration of hypertonic solution with additions).
Surgical and medical procedures
Not known: Febrile reactions; infection at the site of injection, venous thrombosis or phlebitis extending from the site of injection; extravasation and hypervolemia (adverse effects that can be seen due to the technique of administration).