Bacteriostatic water at CVS, Walgreens and Walmart

Bacteriostatic water isn't a standard shelf item at CVS, Walgreens, or Walmart. Availability varies by individual pharmacy, it's usually kept behind the counter if stocked at all, and staff sometimes confuse it with plain sterile water or saline. Call ahead before making a trip.

If you searched a specific chain, this page covers all three: whether each one stocks bacteriostatic water, what it costs, and the reliable alternative. For a broader look at every buying option and how to vet a seller, see where to buy bac water.

Written by bacwaterstar editorial team Reviewed by Jaspal Mann, Superintendent Pharmacist Last reviewed: September 5, 2026

Chain pharmacy availability at a glance

What to expect at each chain. Availability varies by location.
ChainWhat to expect
CVSNot a standard shelf item; may be orderable through the pharmacy. Call the specific store.
WalgreensSame — inconsistent by location; confirm it's bacteriostatic water, not sterile water.
Walmart pharmacyNot normally stocked on the shelf; pharmacy availability varies.

Bacteriostatic water at CVS

CVS is the first place many people check, given its size. In practice, bacteriostatic water isn't carried as a regular front-of-store product, and whether a given CVS pharmacy can supply it varies. If you're going to try, call the specific store and ask for bacteriostatic water for injection by name, and confirm the manufacturer and vial size.

Bacteriostatic water at Walgreens

Walgreens is similar: widely accessible, but bac water isn't a standardized shelf item and stock differs pharmacy to pharmacy. A common mix-up here is saline — saline contains sodium chloride, while bacteriostatic water contains a benzyl alcohol preservative, so they're not the same product.1

Bacteriostatic water at Walmart

Walmart pharmacies aren't a reliable walk-in source either. Call your local Walmart pharmacy first and ask specifically for bacteriostatic water for injection rather than sterile water, since the two aren't interchangeable.1

What about the price?

Because the chains rarely stock it as a retail item, there often isn't a simple shelf price to quote, and price-comparison tools list it as a pharmacy-dispensed item rather than an off-the-shelf buy. That's part of why many buyers use a dedicated online supplier, where the product, size, and price are stated up front.

On prescriptions. In the United States, Hospira's Bacteriostatic Water for Injection, USP is labeled as an Rx-only product.2 Dispensing can differ by the specific product and how it's supplied, so check the exact product's labeling, and ask the pharmacist if you're unsure.

The reliable alternative

If the call-around is a dead end, a dedicated supplier lets you see the manufacturer, USP grade, size, and per-lot documentation before you order. Start with the size you need.

30 mL 10 mL All buying options

Frequently asked questions

Does CVS sell bacteriostatic water?

Not as a standard shelf item. Some CVS pharmacies may be able to supply or order it, but availability varies — call the specific store first.

Is it cheaper at Walgreens or Walmart?

There's rarely a straightforward shelf price at any of the three, since it's not a standard retail item. Compare against a dedicated supplier where the price is stated up front.

Why do the pharmacies confuse it with saline?

Saline and bacteriostatic water are different products. Saline is sodium chloride; bacteriostatic water contains benzyl alcohol as a preservative.1

Sources
  1. Bacteriostatic Water for Injection, USP — Description. DailyMed, U.S. National Library of Medicine. View label.
  2. Bacteriostatic Water for Injection, USP — Rx-only status and full prescribing information. DailyMed. View label.