MG Infusions
FDA issued a warning letter to MG Infusions (United States) on Mar 10, 2025, citing 21 CFR 1271.3. Subject: CGMP, Deviations, Biologics License Application (BLA).
At a glance
What a reviewer notes before reading: findings, citations, the response deadline and what the letter warns of.
- Violations
- 1 finding · 1 issue type
- Cited
- 21 CFR 1271.3
- Response due
- 15 working days after receipt of this letter
- FDA asks for
- 1 actions
- Named as possible actions
- Seizure, injunction
- Issued by
- Center for Biologics Evaluation and Research
- Published status
- No close-out recorded
AI assisted findings
Model-assisted reading of each issue. Open one to see the FDA text it comes from, and check it against the full letter.
01Labeling, claims & marketingProducts are marketed for treatment/prevention of diseases without approved applications, making them unapproved new drugs and unlicensed biological products.
Your website indicates that you sell fecal microbiota for transplantation (FMT) in various forms (e.g., capsules and enema infusions; hereafter “your products”) in the United States for the treatment or prevention of various diseases or conditions. For example your website states the following: - Homepage, under a title of “What is FMT”*1* o “FMT, also called fecal microbiota transplant, and known as a stool transplant is the process of transplanting fecal bacteria from a healthy individual into a recipient as a treatment for Clostridium difficile infection (C.diff [sic]), C.diff related ulcerative colitis, irritable bowel syndrome, and many others.” o “Finding a healthy and reliable donor can be challenging for people going through this struggle, but with the help from mginfusions hundreds to thousands of people have already been helped on the road back to a strong and healthy life.” o “Ideally both forms of administration [capsules and enema infusions] have proven to show significant benefits in removing any types of harmful pathogens, such as c.diff [sic] and ulcerative colitis.” - “About Me” page, under a title of “Donor Information” o “FMT is used to help people with C.Diff [sic], C.diff related ulcerative colitis, and other harmful intestinal bacteria.”
What FDA requested
- Notify FDA in writing of the specific steps taken to correct any violations, including an explanation of each step taken to prevent recurrence and documentation, or state the reason for delay and the date by which corrections will be completed.
FDA Warning Letter
23 paragraphs · 1 sectionText as published on FDA.gov, retrieved Sep 8, 2026. Layout added for reading; the wording is FDA’s. View on FDA.gov (opens in a new tab)
1Letter text
14 paragraphs
This is to advise you that the United States Food and Drug Administration (FDA) has reviewed your website at mginfusions.com (last visited March 2025), as well as other information available to the Agency. Your website indicates that you sell fecal microbiota for transplantation (FMT) in various forms (e.g., capsules and enema infusions; hereafter “your products”) in the United States for the treatment or prevention of various diseases or conditions. For example your website states the following:
Homepage, under a title of “What is FMT”1o “FMT, also called fecal microbiota transplant, and known as a stool transplant is the process of transplanting fecal bacteria from a healthy individual into a recipient as a treatment for Clostridium difficile infection (C.diff [sic]), C.diff related ulcerative colitis, irritable bowel syndrome, and many others.”o “Finding a healthy and reliable donor can be challenging for people going through this struggle, but with the help from mginfusions hundreds to thousands of people have already been helped on the road back to a strong and healthy life.”o “Ideally both forms of administration [capsules and enema infusions] have proven to show significant benefits in removing any types of harmful pathogens, such as c.diff [sic] and ulcerative colitis.”
“About Me” page, under a title of “Donor Information”o “FMT is used to help people with C.Diff [sic], C.diff related ulcerative colitis, and other harmful intestinal bacteria.”
Because these statements indicate that your products are intended for use in the mitigation, treatment, or prevention of disease, they are drugs under section 201(g)(1)(B) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), 21 U.S.C. § 321(g)(1)(B). Your products are also “new drugs” under section 201(p) of the FD&C Act, 21 U.S.C. § 321(p), because they are not generally recognized as safe and effective (GRASE) for their labeled uses. Additionally, your products are biological products as defined in section 351(i) of the Public Health Service Act (PHS Act), 42 U.S.C. § 262(i)] because they are applicable to the prevention, treatment, or cure of a disease or condition of human beings.2
Please be advised that to lawfully market a drug that is also a biological product, a valid biologics license application (BLA) must be in effect, 42 U.S.C. § 262(a). Such licenses are issued only after a demonstration that the product is safe, pure, and potent. A biological product for which a BLA has been approved under 42 U.S.C. § 262(a) is not required to have an approved application under section 505 of the FD&C Act, 21 U.S.C. § 355; 42 U.S.C. § 262(j). Otherwise, with certain exceptions not applicable here, a new drug may not be introduced or delivered for introduction into interstate commerce without an approved application from FDA in effect, as described in 21 U.S.C. § 355(a). While in the development stage, such products may be distributed for clinical use in humans if the sponsor has an investigational new drug application (IND) in effect as specified by FDA regulations, 21 U.S.C. § 355(i); 42 U.S.C. § 262(a)(3); 21 CFR Part 312.
Your products are not the subject of an approved BLA or an approved application under 21 U.S.C. § 355. In addition, there is no IND in effect for their use. Therefore, your products are both unapproved new drugs and unlicensed biological products. Furthermore, the introduction or delivery for introduction into interstate commerce of your products is in violation of the FD&C Act, 21 U.S.C. § 331(d).
In November 2022, FDA issued a revised guidance titled, “Enforcement Policy Regarding Investigational New Drugs Requirements for Use of Fecal Microbiota for Transplantation to Treat Clostridioides difficile Infection Not Responsive to Standard Therapies”. This guidance document indicates that FDA intends to exercise enforcement discretion regarding the IND requirements for the use of FMT in treating Clostridioides difficile (C. difficile) infection not responding to standard therapies, where, among other things, the stool donor and stool are qualified by screening and testing performed under the direction of the licensed health care provider for the purpose of providing the FMT product to treat his or her patient and use of the FMT product does not raise reported safety concerns or potential significant safety concerns.
Although you offer FMT for treatment of C. difficile infection, you also offer it for the treatment of other conditions such as ulcerative colitis, irritable bowel syndrome, and other harmful intestinal bacteria. As noted in FDA’s November 2022 guidance, data related to the use and study of FMT to treat diseases or conditions other than C. difficile infection not responding to standard therapies are more limited, and study of FMT for other uses is not included in the aforementioned enforcement policy. Additionally, your website indicates that you, as a donor, ship your products directly to patients for self-administration. Therefore, there is no assurance that a licensed health care provider treating each of these patients is directing the screening and testing of the stool donor and stool for the patient, as described in the November 2022 guidance.
Your products also raise potential significant safety concerns due to inadequate donor screening. For these reasons, your products would not fall within the enforcement discretion policy referenced above.
The violations cited in this letter are not meant to be an all-inclusive list of violations that may exist in connection with your products. You are responsible for promptly investigating and determining the causes of any violations, correcting them, and preventing their recurrence, and ensuring full compliance with the law.
We advise you to comprehensively review your website and other labeling and marketing materials to ensure that you are lawfully marketing your products in full compliance with the FD&C Act, the PHS Act, and their implementing regulations. Failure to adequately address this matter may result in enforcement action without further notice, including, without limitation, seizure and/or injunction.
This letter notifies you of our findings and provides you an opportunity to address the above deficiencies. If you believe that your products are not in violation of the FD&C Act and the PHS Act, include your reasoning and any supporting information for our consideration in your response to this letter.
Within fifteen working days of receipt of this letter, notify FDA in writing of the specific steps that you have taken to correct any violations. Your response should include an explanation of each step being taken to prevent the recurrence of violations as well as related documentation. If you cannot complete all corrective actions within fifteen working days, state the reason for the delay and the date by which you will complete the correction.
Send your electronic response to CBERDCMRecommendations@fda.hhs.gov. If you have questions regarding this letter, contact the Division of Case Management, CBER at (240) 402-9156.
Citations and trends
Each 21 CFR section, ISO 13485 clause and issue type in this letter, how often it appears across all letters, and its trend by the year FDA issued the letters. 2026 runs to Nov 3, 2026, compared with the same dates last year. Select a row or a bar to see those letters in Letters. As cited in this historical letter, not a statement of current requirements.
Regulations
Also cited: 21 CFR 312
Issue types
Record details
- Issuing center
- Center for Biologics Evaluation and Research
- Issuing office
- Center for Biologics Evaluation and Research
- Location
- United States
- Letter posted date
- Mar 18, 2025
- Letter issue date
- Mar 10, 2025
- Addressed to
- Founder
- Inspection dates
- Not recorded
- Response window
- 15 working days after receipt of this letter
Read the source clause
Within fifteen working days of receipt of this letter, notify FDA in writing of the specific steps that you have taken to correct any violations.
- Record length
- 1,174 words · 0 recorded redactions
- Published status
- No published close-out
- FDA reference
- CBER 25-696890
- Original letter
- View on FDA.gov (opens in a new tab)
- Dataset last checked
- Nov 11, 2026 · How this is built
A response window is not a calculated due date. Source excerpts are selected passages. Finding interpretations and categories are model-assisted. Verify the original letter before relying on a finding.