Media Networks Sydney Pty Limited
FDA issued a warning letter to Media Networks Sydney Pty Limited (Galston, NSW, Australia) on Aug 15, 2024, citing 21 CFR 207.49, 21 CFR 207.57 and 21 CFR 207.33. Subject: Failure to Register and List.
From the letter: “the active ingredients included in the package labeling are aluminum hydroxide, magnesium hydroxide, and simethicone.”
FDA published a close-out letter on Sep 23, 2024. The findings below are from the original warning letter.
At a glance
What a reviewer notes before reading: findings, citations, the response deadline and what the letter warns of.
- Violations
- 2 findings · 1 issue type
- Response due
- 15 working days after receipt of this letter
- FDA asks for
- 5 actions
- Named as possible actions
- Seizure, injunction
- Issued by
- Center for Drug Evaluation and Research
- Published status
- Close-out Sep 23, 2024
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.
01Registration, listing & premarket · 21 CFR 207.49(a)(4)The active ingredients in the electronic listing for Mylanta 2go Antacid Double Strength do not match the package labeling.
the active ingredients included in the package labeling are aluminum hydroxide, magnesium hydroxide, and simethicone. However, the electronic listing file only includes aluminum hydroxide and dimethiconol as the active ingredients while including magnesium hydroxide as an inactive ingredient.
02Registration, listing & premarket · 21 CFR 207.49(a)(4)The active ingredients in the electronic listing for Microlax Enema do not match the package labeling.
the active ingredients described in the package labeling include sodium citrate, sodium lauryl sulfoacetate, and sorbitol. However, the electronic listing file only includes sorbitol as the active ingredient and sodium lauryl sulfoacetate and sodium citrate (trisodium citrate dihydrate) as inactive ingredients.
What FDA requested
- Notify FDA in writing within 15 working days of specific steps taken to address violations.
- Include explanation of each step to prevent recurrence of violations.
- Provide copies of related documentation.
- If corrective actions cannot be completed in 15 days, state reason for delay and time frame.
- If products are not in violation, include reasoning and supporting information.
FDA Warning Letter
19 paragraphs · 2 sectionsText 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)
1Introduction
3 paragraphs
This letter concerns your firm’s drug listing information provided to FDA’s electronic Drug Registration and Listing System (eDRLS) for the following drug products:1
84177-0801 Mylanta 2go Antacid Double Strength 84177-0020 Microlax Enema
Your firm has not fulfilled its listing obligations under section 510(j) of the Federal Food Drug and Cosmetic Act (FD&C Act), 21 U.S.C. 360(j), which is a prohibited act under section 301(p) of the FD&C Act, 21 U.S.C. 331(p). In addition, these drugs are not properly listed with FDA causing them to be misbranded drugs under section 502(o) of the FD&C Act, 21 U.S.C. 352(o). Introduction or delivery for introduction of such misbranded drugs into interstate commerce is prohibited under section 301(a) of the FD&C Act, 21 U.S.C. 331(a). These violations are described in more detail below.
2Drug Listing Violations
8 paragraphs
Section 510(j) of the FD&C Act, 21 U.S.C. 360(j), and 21 CFR Part 207 outline the requirements for registration and listing of drug products. The listing file for drug listing must include the name and quantity of each active pharmaceutical ingredients as required under section 510(j)(1)(c) of the FD&C Act, 21 U.S.C. 360(j)(1)(c), and 21 CFR 207.49(a)(4). In the listing file submitted to FDA for these drug products, the active ingredients list included in the labeling does not match the active ingredient list included in the electronic listing file. Specifically, for the listing of Mylanta 2go Antacid Double Strength, NDC 84177-0801, the active ingredients included in the package labeling are aluminum hydroxide, magnesium hydroxide, and simethicone. However, the electronic listing file only includes aluminum hydroxide and dimethiconol as the active ingredients while including magnesium hydroxide as an inactive ingredient.
With regard to the listing of Microlax Enema, NDC 84177-0020, the active ingredients described in the package labeling include sodium citrate, sodium lauryl sulfoacetate, and sorbitol. However, the electronic listing file only includes sorbitol as the active ingredient and sodium lauryl sulfoacetate and sodium citrate (trisodium citrate dihydrate) as inactive ingredients.
Therefore, your firm has not fulfilled its listing obligations under section 510(j) of the FD&C Act, 21 U.S.C. 360(j), which is a prohibited act under section 301(p) of the FD&C Act, 21 U.S.C. 331(p). In addition, Mylanta 2go Antacid Double Strength (NDC 84177-0801), and Microlax Enema (NDC 84177-0020) are not properly listed with the FDA, causing them to be misbranded drugs under section 502(o) of the FD&C Act, 21 U.S.C. 352(o). Introduction or delivery for introduction of such a product into interstate commerce is prohibited under section 301(a) of the FD&C Act, 21 U.S.C. 331(a).
Complete, accurate and up-to-date establishment registration and drug listing information is essential to promote and protect patient safety. FDA relies on establishment registration and drug listing information for several key programs, including drug establishment inspections, supply chain security, and post-market surveillance. Drug registration and listing information is also widely used outside FDA for purposes such as electronic prescribing and electronic health records, insurance reimbursement, and patient education.
We note that this warning letter only addresses registration and listing issues associated with your products. It is not intended to be an all-inclusive statement of violations that may exist in connection with your products. Your firm should investigate and determine the causes of any violations and take prompt actions to correct the violations and bring the products into compliance. It is also your responsibility to correct listing deficiencies with all other products distributed by your firm.
This letter notifies you of our concerns and provides you an opportunity to address them. Failure to adequately address this matter may result in legal action including, without limitation, seizure, and injunction.
Please notify FDA in writing, within 15 working days of receipt of this letter, of the specific steps you have taken to address any violations. Include an explanation of each step being taken to prevent the recurrence of violations, as well as copies of related documentation. If you cannot complete corrective actions within 15 working days, state the reason for the delay and the time within which you will do so. In absence of a corrective action, the deficient listing data will not be available for certification under 21 CFR 207.57(b)(2) requirements and will be ultimately inactivated by FDA. If you believe that your products are not in violation of the FD&C Act, include your reasoning and any supporting information for our consideration.
Your response should be sent to U.S. Food and Drug Administration, Center for Drug Evaluation and Research/Office of Compliance/Office of Unapproved Drugs and Labeling Compliance by e-mail to eDRLS@fda.hhs.gov. Please be aware that a manual override may be required for certain types of revisions made to an existing drug listing file. If you receive a validation error or have any questions regarding the contents of this letter, please contact us at eDRLS@fda.hhs.gov. for further assistance. Include the case identification number 2716 on all correspondence.
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 207
Issue types
Record details
- Issuing center
- Center for Drug Evaluation and Research
- Issuing office
- Center for Drug Evaluation and Research
- Location
- Galston, NSW, Australia
- Letter posted date
- Aug 20, 2024
- Letter issue date
- Aug 15, 2024
- Addressed to
- Not recorded
- Inspection dates
- Not recorded
- Response window
- 15 working days after receipt of this letter
Read the source clause
Please notify FDA in writing, within 15 working days of receipt of this letter, of the specific steps you have taken to address any violations.
- Record length
- 954 words · 1 recorded redactions
- Published status
- Close-out published Sep 23, 2024
- FDA reference
- 2716
- 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.