# Major Recall Alert: SLSolutionâ„¢ Reagent Recall Over Potentially Faulty Functionality in Respiratory Specimens
A significant recall involving **SLSolution™ reagents** has been announced due to a critical issue with **dithiothreitol (DTT)**, a chemical component that may lose functionality when exposed to air and/or metals. This recall impacts two specific lots—**0U019N** and **0U020N.A**—and has been initiated after an increase in reports of device failures. Consumers and laboratory professionals are advised to discontinue the use of affected products immediately and follow the company’s recall instructions.
Learn more about the recall details, reasons, and steps to take to ensure safety below.
## Why This Recall is Important
This recall is crucial because the **SLSolutionâ„¢ reagent**, a tool used for fluidifying respiratory specimens, relies heavily on the integrity of its **dithiothreitol (DTT)** component. Under normal conditions, the reagent should appear **clear and colorless**. However, when DTT deteriorates due to oxidation, the reagent turns **pink or yellow**, signaling **device failure**.
If a discolored product is used, the reagent's **fluidification functionality** in respiratory specimens cannot be guaranteed, potentially leading to compromised results in diagnostic and laboratory processes. Incorrectly processed samples can directly impact diagnostic reliability, posing a risk to public health, especially in critical healthcare settings.
## Details of the Recall
- **Recalled Product**: SLSolutionâ„¢
- **Issue**: Oxidation of DTT causing discoloration (pink or yellow), which impacts the reagent's functionality.
- **Affected Lots**:
- Lot **0U019N**
- Lot **0U020N.A**
- **Reason for Recall**: A spike in notifications from the market in August-September 2025 revealed an **unexpectedly high defect rate** in the affected lots.
- **Manufacturer**: Copan
- **Date of Recall Announcement**: October 2025
The manufacturer, **Copan**, has issued a **precautionary voluntary recall** to prevent further use of the defective products. Affected reagents should immediately be removed from use to avoid potential complications.
## What You Should Do
If you are currently using **SLSolutionâ„¢ reagents**, follow these steps to ensure laboratory safety:
1. **Inspect the Reagent**:
- Verify the product’s appearance. If the reagent shows signs of discoloration (pink or yellow), **stop using it immediately**.
- Reagents must be **clear and colorless** to ensure proper functionality.
2. **Follow Safety Warnings**:
- Refer to the product’s instructions for use. Warning number 8 in the **EIFU013 instructions** highlights that **non-colorless reagents** must not be used.
- Ensure the suitability of specimens for further analysis by homogenizing samples as per the instructions: Vortex for at least 3 seconds at 2000-2500 rpm.
3. **Check Lot Numbers**:
- Confirm if your product belongs to the recalled lots (**0U019N** or **0U020N.A**).
- If so, immediately discontinue use and contact the manufacturer for further guidance.
4. **Report Issues**:
- Notify relevant internal quality assurance teams or reach out directly to Copan for further steps regarding replacements or refunds.
For official information, visit the [Government of Canada Recall Website](https://recalls-rappels.canada.ca/en/alert-recall/slsolutiontm).
## Stay Safe – Get Instant Recall Alerts
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**Download our Recall Alert App** today to receive immediate notifications on product recalls right to your phone. Stay proactive, compliant, and safe in every aspect of your business.
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By taking prompt action and staying informed, you can minimize risks associated with defective products like **SLSolutionâ„¢ reagents**. Always double-check the integrity of your tools and rely on **official recall sources** to guide your response.