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3% Sodium Chloride

Generic: 3% Sodium Chloride

Verified·Apr 23, 2026
Manufacturer
Baxter
NDC
17271-703
RxCUI
730781
Route
INTRAVENOUS
ICD-10 indication
E87.1

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About 3% Sodium Chloride

What is this medication?

3% Sodium Chloride is a concentrated hypertonic saline solution used primarily to treat severe cases of hyponatremia, which is a condition characterized by dangerously low sodium levels in the blood. Because this solution contains a higher concentration of salt than what is normally found in the body, it helps to quickly restore electrolyte balance and pull excess fluid out of cells. It is typically administered through an intravenous line in a hospital setting where healthcare professionals can provide constant monitoring to ensure that sodium levels do not rise too rapidly.

This medication is also frequently used to manage elevated intracranial pressure caused by conditions such as traumatic brain injury or cerebral edema. By drawing water away from brain tissue and into the bloodstream, it helps reduce swelling and prevent further neurological damage. Due to its high concentration, it must be handled with extreme care to avoid serious complications like osmotic demyelination syndrome, making it a specialized critical care treatment rather than a routine hydration fluid.

Copay & patient assistance

Detailed copay and financial assistance information is not publicly available for this medication at this time. Please consult your pharmacist or the manufacturer's official patient support program for more details.

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Prescribing information

From the FDA-approved label for 3% Sodium Chloride. Official source: DailyMed (NLM) · Label effective Jan 14, 2021

Indications and usage
INDICATIONS AND USAGE: 3% Sodium Chloride Injection is indicated as a source of water and electrolytes.
Dosage and administration
DOSAGE AND ADMINISTRATION: As directed by a physician. Dosage, rate, and duration of administration are to be individualized and depend upon the indication for use, the patient's age, weight, clinical condition, concomitant treatment, and on the patient's clinical and laboratory response to treatment. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and container permit. Use of a final filter is recommended during administration of all parenteral solutions, where possible. Do not administer unless solution is clear and seal is intact. All injections in flexible plastic containers are intended for intravenous administration using sterile and nonpyrogenic equipment. Additives may be incompatible. Complete information is not available. Those additives known to be incompatible should not be used. Consult with pharmacist, if available. If, in the informed judgment of the physician, it is deemed advisable to introduce additives, use aseptic technique. Mix thoroughly when additives have been introduced. Do not store solutions containing additives. After opening the container, the contents should be used immediately and should not be stored for a subsequent infusion. Do not reconnect any partially used containers. Discard any unused portion.
Contraindications
CONTRAINDICATIONS: None known.
Warnings
WARNINGS: Hypersensitivity/infusion reactions, including hypotension, pyrexia, tremor, chills, urticaria, rash, and pruritus may occur with 3% Sodium Chloride Injection. Stop the infusion immediately if signs or symptoms of a hypersensitivity reaction develop, such as tachycardia, chest pain, dyspnea and flushing. Appropriate therapeutic countermeasures must be instituted as clinically indicated. Depending on the volume and rate of infusion, the intravenous administration of 3% Sodium Chloride Injection can cause fluid and/or solute overloading resulting in dilution of serum electrolyte concentrations, overhydration/hypervolemia, congested states, pulmonary edema, or acid-base imbalance. The risk of dilutive states is inversely proportional to the electrolyte concentration of the injection. The risk of solute overload causing congested states with peripheral and pulmonary edema is directly proportional to the electrolyte concentrations of the injection. Monitor changes in fluid balance, electrolyte concentrations, and acid base balance during prolonged parenteral therapy or whenever the condition of the patient or the rate of administration warrants such evaluation. Administer 3% Sodium Chloride Injection with particular caution to patients with or at risk for hypernatremia, hyperchloremia, hypervolemia or with conditions that may cause sodium retention, fluid overload and edema; such as patients with primary hyperaldosteronism, or secondary hyperaldosteronism (for example, associated with hypertension, congestive heart failure, liver disease (including cirrhosis), renal disease (including renal artery stenosis, nephrosclerosis) or pre-eclampsia). Certain medications may increase risk of sodium and fluid retention ( see Drug Interactions ). Administer 3% Sodium Chloride Injection with particular caution to patients with severe renal impairment. In such patients administration of Sodium Chloride Injection may result in sodium retention.
Drug interactions
Drug Interactions Caution must be exercised in the administration of 3% Sodium Chloride Injection to patients treated with drugs that may increase the risk of sodium and fluid retention, such as corticosteroids. Caution is advised in patients treated with lithium. Renal sodium and lithium clearance may be increased during the administration of 3% Sodium Chloride Injection. Administration of 3% Sodium Chloride Injection may, therefore, result in decreased lithium levels.
Adverse reactions
ADVERSE REACTIONS: Post-Marketing Adverse Reactions The following adverse reactions have not been reported with 3% Sodium Chloride Injection but may occur: hyperchloremia hyperchloremic metabolic acidosis, hypersensitivity/infusion reactions, including hypotension, pyrexia, tremor, chills, urticaria, rash, and pruritus, Infusion site reactions, such as thrombosis, phlebitis, irritation, infusion site erythema, injection site streaking, burning sensation, infusion site urticaria. If an adverse reaction does occur, discontinue the infusion, evaluate the patient, institute appropriate therapeutic countermeasures, and save the remainder of the fluid for examination if deemed necessary.
Use in pregnancy
Pregnancy There are no adequate and well controlled studies with 3% Sodium Chloride Injection in pregnant women and animal reproduction studies have not been conducted with this drug. Therefore, it is not known whether 3% Sodium Chloride Injection can cause fetal harm when administered to a pregnant woman. 3% Sodium Chloride Injection should be given during pregnancy only if the potential benefit justifies the potential risks to the fetus.

Label text is reproduced as-is from the FDA-approved label. We do not paraphrase, summarize, or omit. Content above is for informational purposes only and is not medical advice. Always consult your prescribing clinician or pharmacist before making decisions about your medication.

Conditions we've indexed resources for

Click a condition to see copay cards, grants, and PA rules specific to it. For the full list of FDA-approved indications, see Prescribing information above.

Medicare Part D coverage

How 3% Sodium Chloride appears across Medicare Part D plan formularies nationally. Source: CMS monthly Prescription Drug Plan file (2026-04-30).

Covered by plans

86%

4,740 of 5,509 plans

Most common tier

Tier 2

On 32% of covering formularies

Prior authorization required

1%

of covering formularies

TierFormularies on this tierShare
Tier 1 (preferred generic)54
26%
Tier 2 (generic)68
32%
Tier 3 (preferred brand)38
18%
Tier 4 (non-preferred brand)49
23%
Tier 61
0%

Step therapy: 0% of formularies

Quantity limits: 0% of formularies

Coverage breadth: 210 of 65 formularies

How to read this:plans on the same formulary share tier + PA rules. Your specific plan's copay depends on (a) the tier above, (b) your plan's cost-share for that tier, (c) whether you're in the initial coverage phase or past the 2026 $2,000 out-of-pocket cap. For your exact plan, check its Summary of Benefits or log in to your Medicare.gov account. Copay cards don't apply to Medicare (federal law).

Prior authorization & coverage

PayerPAStep therapyCopay tier

Medicare Part D

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How this page is sourced

  • Drug identity verified against openFDA NDC Directory.
  • Label text (when shown) originates from NLM DailyMed.
  • Copay and assistance URLs verified periodically; if you hit a broken link, tell us.