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Sodium chloride (flush)

Generic Name: sodium chloride (flush). [SOE dee-um-KLOR ide]
Brand names: BD Normal Saline Flush, BD posiflush SF, BD posiflush SF w/BPC, Normal Saline Flush, Swabflush,… Show all 8 brands.
Dosage form: injectable solution (0.9%)
Drug Classes: Minerals, Electrolytes, and Respiratory Agents

What is Sodium chloride (flush)?

Sodium chloride is the chemical name for the salt. Some types of bacteria can be reduced by sodium chloride.

The sodium chloride flush is used to clean an intravenous catheter. It helps to prevent blockage and removes any medication left in the catheter after receiving an IV infusion. This medication guide does not list all possible uses for sodium chloride.

Side effects of Sodium chloride (flush)

If you experience any of the following symptoms of an allergic reaction, seek immediate medical attention: hives, difficulty breathing, swelling of the face, lips, or throat.

If you experience any of the following side effects, stop using the sodium chloride rinse and contact your doctor immediately.

  • Severe irritation;
  • Swelling;
  • Warmth;
  • Redness;
  • Oozing;

Some of the common side effects associated with sodium chloride include:

  • Cold feeling or mild burning.
  • Mild irritation around the catheter

There may be other side effects. For medical advice on side effects, call your doctor. The FDA can be contacted at 1-800-FDA-1088 to report side effects.

Similar/related drugs

Sodium chloride, nebusal, Hyper-Sal, and formaldehyde topical


Please read all the instructions on the label or package of your medication. Inform your healthcare provider about your medical conditions, your allergies, and the medicines you are using.

Before you take this drug

Tell your doctor, before using the sodium chloride rinse, if you have an allergy to any drug.

How to take Sodium chloride?

Do not exceed the dosage or frequency prescribed by your physician. Use only the recommended dosage. Use the sodium chloride flush every time you use an IV catheter. You should follow your doctor's directions on how often you need to flush the catheter. Check the container of the solution before using it to ensure there aren't any leaks. If the medication has changed color or contains particles, do not use it. You can call your doctor to get a new prescription.

If your IV tubing, catheter, or needle becomes clogged, or if the medicine or flush is not flowing as it should, call your doctor. Ask your pharmacist how to dispose of sharps disposal containers (and where to find one). This container should be kept out of the reach of pets and children. Store sodium chloride away from heat and moisture at room temperature. When not in use, store all your catheter flushing supplies in a dry and clean place.

What happens if I miss the dose?

You are unlikely to miss a dosage if you flush your catheter every time you use it.

What happens if I overdose?

It is very unlikely that a sodium chloride flush overdose will occur.

What should be avoided?

If your doctor prescribes any restrictions regarding food, beverage, or activity, follow their instructions.

Interaction with other drug

Other drugs that you may take orally or by injection will not affect the sodium chloride used for flushing your catheter. Many drugs interact with each other. Inform your healthcare providers of all the medicines you take, including vitamins and herbal remedies.