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Spectrum-4 FDA Alerts

The FDA Alerts below may be specifically about Spectrum-4 or relate to a group or class of drugs which include Spectrum-4.

MedWatch Safety Alerts are distributed by the FDA and published by Following is a list of possible medication recalls, market withdrawals, alerts and warnings.

Recent FDA Alerts for Spectrum-4

Sunstar Americas Inc. Issues Voluntary Nationwide Recall of Paroex® Chlorhexidine Gluconate Oral Rinse USP, 0.12% Due to Microbial Contamination

Sunstar Americas, Inc. (SAI) is voluntarily recalling Paroex® Chlorhexidine Gluconate Oral Rinse USP, 0.12% products bearing an expiration date from 6/30/22 – 9/30/22 (see specific lots below) to the consumer level. This product may be contaminated with the bacteria Burkholderia lata.

Use of the defective product in the immunocompetent host may result in oral and, potentially, systemic infections requiring antibacterial therapy. In the most at-risk populations, the use of the defective product may result in life-threatening infections, such as pneumonia and bacteremia. To date, no adverse events have been reported to SAI related to this recall.

The prescription oral rinse product, available through healthcare professionals only, is indicated for use as part of a professional program for the treatment of gingivitis and is packaged as follows:

  • 1789P GUM® Paroex® is distributed in cases each containing 6 amber bottles of 16 fluid ounce (473 ml) chlorhexidine rinse. The bottle has a childproof cap and a 15 ml metered dosage cup, is safety sealed, and is decorated with a multiple-panel wrap-around label.
  • 1788P GUM® Paroex® is distributed in cases each containing 24 amber bottles of 4 fluid ounce (118.25 ml) chlorhexidine rinse. The bottle has a childproof cap, is safety sealed, and is decorated with a multiple-panel wrap-around label.

The product can be identified by as shown in the images below:

Paroex was distributed Nationwide to Dental offices, Dental distributors, Pharmaceutical wholesalers, Dental schools, and Pharmacies.

SAI is notifying its direct distributors and customers by USPS Priority mail and is arranging for return of all recalled products. Patients, pharmacies, and healthcare facilities in possession of these products should stop using and dispensing immediately.

Consumers with questions regarding this recall can contact SAI by phone at 1-800-528-8537 or email on Monday-Friday from 8am-5pm CST. Consumers should contact their physician or healthcare provider if they have experienced any problems that may be related to using this drug product.

Affected products and lot numbers follow below:


Product name: Paroex® Chlorhexidine Gluconate Oral Rinse USP, 0.12% NDC # 052376-021-02 P/N 1789P 16 fl oz
Lot # Exp Date Lot # Exp Date Lot # Exp Date
C170FY 6/30/22 C191KT 7/31/22 C205BL 7/31/22
C170FZ 6/30/22 C191KU 7/31/22 C205BM 7/31/22
C170GA 6/30/22 C191KW 7/31/22 C205BN 7/31/22
C170GB 6/30/22 C191KX 7/31/22 C219DS 8/31/22
C170GC 6/30/22 C191KY 7/31/22 C240GM 9/30/22
C177GP 6/30/22 C198LJ 7/31/22 C219DK 8/31/22
C177GQ 6/30/22 C198LK 7/31/22 C219DL 8/31/22
C177GR 6/30/22 C198LL 7/31/22 C219DM 8/31/22
C240GP 9/30/22 C198LM 7/31/22 C219DN 8/31/22
C240GQ 9/30/22 C205BH 7/31/22 C219DP 8/31/22
C240GR 9/30/22 C205BJ 7/31/22 C219DQ 8/31/22
C191KS 7/31/22 C205BK 7/31/22 C219DR 8/31/22
Product name: Paroex® Chlorhexidine Gluconate Oral Rinse USP, 0.12% NDC # 052376-021-04 P/N 1788P 4.0 fl oz
Lot # Exp Date
C191KR 7/31/22

Adverse reactions or quality problems experienced with the use of this product may be reported to the FDA's MedWatch Adverse Event Reporting program either online, by regular mail or by fax.

  • Complete and submit the report Online
  • Regular Mail or Fax: Download form or call 1- 800-332-1088 to request a reporting form, then complete and return to the address on the pre-addressed form, or submit by fax to 1-800-FDA-0178

Sunstar is committed to delivering safe, fully compliant products of the highest quality and is taking necessary steps to prevent future occurrence of this issue.

This recall is being conducted with the knowledge of the U.S. Food and Drug Administration.

About Sunstar Americas Inc.

Sunstar Americas, Inc., a member of the Sunstar Group of companies, is a global organization headquartered in Switzerland that is a leader in the oral care industry and the manufacturer and distributor of the GUM and Butler Brands.

Source: FDA

Chlorhexidine Gluconate: Drug Safety Communication - Rare But Serious Allergic Reactions

ISSUE: FDA is warning that rare but serious allergic reactions have been reported with the widely used skin antiseptic products containing chlorhexidine gluconate. Although rare, the number of reports of serious allergic reactions to these products has increased over the last several years. See the FDA Drug Safety Communication for a data summary.

As a result, FDA is requesting the manufacturers of over-the-counter (OTC) antiseptic products containing chlorhexidine gluconate to add a warning about this risk to the Drug Facts labels.

BACKGROUND: Chlorhexidine gluconate is mainly available in OTC products to clean and prepare the skin before surgery and before injections in order to help reduce bacteria that potentially can cause skin infections. These products are available as solutions, washes, sponges, and swabs and under many different brand names and as generics. Chlorhexidine gluconate is also available as a prescription mouthwash to treat gingivitis and as a prescription oral chip to treat periodontal disease.

Prescription chlorhexidine gluconate mouthwashes and oral chips used for gum disease already contain a warning about the possibility of serious allergic reactions in their labels.

In 1998, FDA issued a Public Health Notice to warn health care professionals about the risk of serious allergic reactions with medical devices such as dressings and intravenous lines that contain chlorhexidine gluconate.

RECOMMENDATION: Health care professionals should always ask patients if they have ever had an allergic reaction to any antiseptic before recommending or prescribing a chlorhexidine gluconate product. Advise patients to seek immediate medical attention if they experience any symptoms of an allergic reaction when using the products. Consider using alternative antiseptics such as povidone-iodine, alcohols, benzalkonium chloride, benzethonium chloride, or parachlorometaxylenol (PCMX) when any previous allergy to chlorhexidine gluconate is documented or suspected.

Patients and consumers should stop using the product that contains chlorhexidine gluconate and seek medical attention immediately or call 911 if they experience symptoms of a serious allergic reaction. These reactions can occur within minutes of exposure. Symptoms include wheezing or difficulty breathing; swelling of the face; hives that can quickly progress to more serious symptoms; severe rash; or shock, which is a life-threatening condition that occurs when the body is not getting enough blood flow.

Healthcare professionals and patients are encouraged to report adverse events or side effects related to the use of these products to the FDA's MedWatch Safety Information and Adverse Event Reporting Program:

[02/02/2017 - Drug Safety Communication - FDA]

Over-the-Counter Topical Antiseptic Products: Drug Safety Communication - FDA Requests Label Changes and Single-Use Packaging to Decrease Risk of Infection

ISSUE: The U.S. Food and Drug Administration (FDA) is requesting label and packaging changes to enhance the safe use of certain over-the-counter (OTC) topical antiseptic products. This request is the result of our ongoing evaluation of infrequent but continuing reports of infections resulting from antiseptic products labeled for preoperative or preinjection skin preparation.  When used properly, topical antiseptics are safe and effective products to reduce the number of bacteria on patients’ skin prior to surgery or injections.  However, most often, contamination of topical antiseptics occurs when organisms are introduced into the product by users.  Therefore, health care professionals and patients should follow all label directions to decrease the chances of infection.
Outbreaks associated with the use of contaminated topical antiseptics have been reported in the medical literature and to the Centers for Disease Control and Prevention (CDC). Clinical infections have also been reported to FDA, leading to some product recalls.  The reported outcomes ranged from localized infections at injection sites to systemic infections that resulted in death.  FDA has reviewed reports of four deaths, five cases of wound infection, seven cases of peritonitis, 10 cases of septic arthritis, 14 cases of indwelling catheters requiring replacement, 16 cases of injection site infection, and 32 cases of bacteremia.  These infections have been confirmed to be caused by contaminated antiseptic products.  Affected products included all commonly used antiseptic ingredients, including alcohol, iodophors, chlorhexidine gluconate, and quaternary ammonium products.  Organisms implicated in the outbreaks included Bacillus cereus, Burkholderia cepacia, Pseudomonas aeruginosa, Achromobacter xylosoxidans, Ralstonia pickettii, Serratia marcescens, and Mycobacterium abscessus.

BACKGROUND: Over-the-counter (OTC) topical antiseptic drugs for use according to the label instructions to reduce the number of bacteria on the skin prior to surgery or injections. When used properly, over-the-counter (OTC) topical antiseptics are safe and effective products to reduce the number of bacteria on the skin prior to surgery or an injection.  Commonly used products contain isopropyl or ethyl alcohol, povidone iodine, poloxamer iodine, benzalkonium chloride, benzethonium chloride, or chlorhexidine gluconate as a single agent or in combination with alcohol. These products are marketed as solutions, swabs, pads saturated with a solution, and applicators containing a solution. Currently available as both single-use and multiple-use products. 

Topical antiseptics are not required to be manufactured as sterile and so may become contaminated with bacteria during manufacturing. Labeling stating a product is sterile means it was treated with a process during manufacturing to eliminate all potential microorganisms. However, even topical antiseptics manufactured with a sterile process, can become contaminated if proper care is not taken when using them.  The term nonsterile on the product label means it was not sterilized during manufacturing; it does not mean the product contains harmful bacteria.

RECOMMENDATION: To further reduce the risk of infection with improper topical antiseptic use and the possibility of these products becoming contaminated with bacteria during use, we are requesting that manufacturers package antiseptics indicated for preoperative or preinjection skin preparation in single-use containers.

  • To reduce the risk of infection, ensure the products are used according to the directions on the label.
  • The antiseptics in these single-use containers should be applied only one time to one patient. 
  • We also recommend that health care professionals and patients do not dilute antiseptic products after opening them. 
  • Applicators and any unused solution should be discarded after the single application.

[11/13/2013 - Drug Safety Communication - FDA] 
[11/13/2013 - Questions and Answers - FDA]

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