Written and maintained by CASRAI Editorial Board
Last updated
General product and labeling information only, not medical advice. Use of any fluid for a patient is a clinical decision made under the product’s labeling and your facility’s policies.
Short answer
Yes. Sterile 0.9% sodium chloride (saline) in IV bags, flushes and other sterile containers carries a manufacturer-assigned expiration date, because US drug rules require a labeled drug product to bear a date set by stability testing. The date is valid only for the product stored as its label directs. If the date has passed, or the storage conditions were not met, the container is not within its labeled life.
Definition and scope
This page covers sterile sodium chloride injection, the fluid in IV bags and in prefilled saline flush syringes. It does not cover homemade salt solutions, and it is separate from saline sold for rinsing contact lenses (see contact lens saline solution). In this context “expiration date” means the date printed on the labeling after which the manufacturer no longer supports the product’s stated quality. A “beyond-use date” assigned by a pharmacy after opening or compounding is a different concept and is set by the pharmacy, not read from the bag.
How the expiration date is set and printed
Who sets it
Under 21 CFR 211.137(a), a drug product “shall bear an expiration date determined by appropriate stability testing” so that it meets standards of identity, strength, quality and purity “at the time of use.” The date is therefore a manufacturer decision, made lot by lot from stability data. Neither the clinic nor the buyer sets it.
It depends on storage
21 CFR 211.137(b) states that expiration dates “shall be related to any storage conditions stated on the labeling.” One FDA-approved sodium chloride injection label on DailyMed (Fresenius Kabi USA, ANDA207310, label revised December 2025, checked 2026-10-30) states: “Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Protect from freezing.” That is one product’s label; always read the label of the container in hand, since conditions are product-specific.
Where the date must appear
21 CFR 201.17 requires the date to appear on the immediate container and also on the outer package, if any, unless it is easily legible through the outer package. When single-dose containers are packed in individual cartons, the date may appear on the individual carton instead of on the container. In practice that means a loose single-dose unit removed from its carton may not show the date itself.
Label-reading checklist for saline containers
| Check | Why (source) |
|---|---|
| Find the printed expiration date on the container or, for single-dose units, its carton | 21 CFR 201.17 lets the carton carry the date for single-dose containers packed in individual cartons |
| Read the storage statement and compare it with how the stock was kept | 21 CFR 211.137(b) ties the date to the labeled storage conditions; the Fresenius Kabi label says to store at 20° to 25°C and protect from freezing |
| Treat the printed date as the manufacturer’s, not as a figure you can extend | 21 CFR 211.137(a); see the FDA lot-specific extension below |
| Record the lot number and date by item and size | Stock rotation practice described in IV bag stocking guidance on this site |
Only the manufacturer and FDA can extend a date
An FDA Center for Biologics Evaluation and Research notice (page current as of 2024-10-21) extends the expiration date of named lots: 10% LMD in 0.9% Sodium Chloride Injection (dextran 40 in sodium chloride), Lot 5859955, through April 1, 2025, and a companion dextrose product lot. This is a dextran product, not plain saline, and it is cited here only to show the mechanism: extensions are lot-specific and announced by FDA, never decided by the user of the product.
Where it matters for labs and clinics
Because the date sits on the container or its carton, receiving checks and shelf audits read it directly. A facility that stocks several sizes of the same fluid benefits from tracking the date by fluid and size so the earliest-expiring units are used first, as covered in IV bags: fluid types and institutional stocking. For what the bag itself is made of, see Viaflex bag.
Common misunderstandings
- “Salt water cannot go bad.” The product is a sterile, nonpyrogenic drug (as the Fresenius Kabi label describes it); the labeled date and storage conditions exist because the regulation requires stability-based dating, not because salt degrades.
- “The date is a universal number of years.” No single shelf life applies to all saline. Each manufacturer sets it per product and lot.
- “Cold or hot storage does not matter if the date is fine.” The date is related to the labeled storage conditions, so it holds only for product stored that way.
- “A pharmacy beyond-use date and a manufacturer expiration date are the same.” They are set by different parties for different situations.
FAQ
What is the IV bag shelf life?
It is the manufacturer’s printed expiration date for that lot, set from stability testing (21 CFR 211.137) and valid under the labeled storage conditions. There is no single figure that applies to all bags, so read the date on the bag or its carton.
Where is the expiration date on a saline flush?
On the container and the outer package; for single-dose units packed in individual cartons, 21 CFR 201.17 allows it on the carton alone. See what a saline flush is.
Can an expired date be extended?
Only through a manufacturer or FDA action tied to specific lots, such as the FDA notice above. A user cannot extend it.
Sources
- 21 CFR 201.17, Drugs; location of expiration date, law.cornell.edu/cfr/text/21/201.17, checked 2026-10-30.
- 21 CFR 211.137, Expiration dating, law.cornell.edu/cfr/text/21/211.137, checked 2026-10-30.
- DailyMed, Sodium Chloride Injection, USP label (Fresenius Kabi USA, LLC, ANDA207310, revised December 2025), dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=2e5fe9f4-78e5-4af4-8bf9-9680e5dc5e88, checked 2026-10-30.
- FDA CBER, Extension of the Expiration Date for 10% LMD in 0.9% Sodium Chloride Injection, page current as of 2024-10-21, checked 2026-10-30.
