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WARNING LETTER 

WL # 709509

September 22, 2025

Dear Mr. Schneider:

From January 27, 2025, to February 7, 2025, a U.S. Food and Drug Administration (FDA) investigator inspected your facility, Revive Rx LLC dba Revive Rx Pharmacy, located at 3831 Golf Drive, Suite A, Houston, TX 77018. During the inspection, the investigator noted serious deficiencies in your practices for producing drug products, which put patients at risk.

FDA issued a Form FDA 483 to your firm on February 7, 2025. We reviewed your March 3, 2025, and March 4, 2025, responses to our Form FDA 483 in detail and acknowledge receipt of your subsequent correspondence. Based on this inspection, it appears that you produced drug products that violate the Federal Food, Drug, and Cosmetic Act (FDCA).

A. Compounded Drug Products Under the FDCA

Section 503A of the FDCA describes the conditions under which human drug products compounded by a licensed pharmacist in a State licensed pharmacy or a Federal facility, or a licensed physician, qualify for exemptions from three sections of the FDCA: compliance with current good manufacturing practice (CGMP) (section 501(a)(2)(B)); labeling with adequate directions for use (section 502(f)(1)); and FDA approval prior to marketing (section 505) [21 U.S.C. §§ 351(a)(2)(B), 352(f)(1) and 355(a)].

B. Violations of the FDCA

Adulterated Drug Products

The FDA investigator noted that drug products intended or expected to be sterile were prepared, packed, or held under insanitary conditions, whereby they may have become contaminated with filth or rendered injurious to health, causing your drug products to be adulterated under section 501(a)(2)(A) of the FDCA. For example, the investigator observed that:

1. Your firm exposed drug products intended to be sterile to worse than ISO (b)(4) quality air.

2. Your firm did not perform adequate product evaluation and take appropriate corrective action after microbial contamination was recovered within the ISO (b)(4) aseptic processing area.

3. Your media fills were not performed under the most challenging or stressful conditions. Therefore, there is a lack of assurance that your firm can aseptically produce drug products within your facility.

4. Your firm failed to perform adequate smoke studies under dynamic conditions to demonstrate unidirectional airflow within the ISO (b)(4) area. Therefore, your products intended to be sterile are produced in an environment that may not provide adequate protection against the risk of contamination.

5. Your firm failed to sterilize (b)(4) by routine sterilization cycles and protect from contamination by sterilizing (b)(4) on (b)(4) air lines/vents.

6. Your firm failed to perform adequate routine environmental monitoring in the ISO (b)(4) area. Specifically, (b)(4) units are not monitored using meaningful environmental monitoring data to include surface, viable active air, or non-viable air samples inside the (b)(4) units.

Under section 301(a) of the FDCA [21 U.S.C. § 331(a)], the introduction or delivery for introduction into interstate commerce of any drug that is adulterated is a prohibited act. Further, it is a prohibited act under section 301(k) of the FDCA [21 U.S.C. § 331(k)] to do any act with respect to a drug, if such act is done while the drug is held for sale after shipment in interstate commerce and results in the drug being adulterated.

C. Corrective Actions

We have reviewed your firm’s responses to the Form FDA 483.

Regarding your responses related to the insanitary conditions, the following corrective actions appear deficient:

1. Related to the transfer of (b)(4) vials through an ISO (b)(4) area, your response is focused on potential long term corrective actions such as upgrading the (b)(4) to change the entire area to ISO (b)(4), purchasing (b)(4) biosafety modules, or evaluating new (b)(4) to reduce or eliminate exposure to the ISO (b)(4) environment. However, your response did not address how you would ensure that other (b)(4) products are not exposed to worse than ISO (b)(4) quality air in the interim. In addition, you did not provide a copy of investigation 030325-02 as referenced in your response.

2. Your response did not address microbial recoveries in the ISO (b)(4) areas of (b)(4) CFUs or less, including non-spore forming bacteria. Per your response, it appears that your firm’s action limit is greater than (b)(4) CFUs for all classified areas, including ISO (b)(4) areas. Please note that any microbial contamination in the ISO (b)(4) area is considered an insanitary condition. Any microbial contamination within the ISO (b)(4) area is a serious concern and upon recovery, your firm should immediately assess the impact on drug products produced. This assessment should include a thorough evaluation of how contamination could have entered this critical area, and over what period of time the contamination could have existed, as well as drug products that remain on the market that could be affected.

3. You state that your firm “will commit to assessing and improving the current media fill program to include loading and unloading trays of media filled vials in the (b)(4).” However, your response did not address how you would ensure that (b)(4) products have appropriate media fills in the interim to ensure the processes are aseptic. Furthermore, your response did not state that you would cease or pause (b)(4) products you produce until adequate corrections are made.

4. You acknowledged in your response that your firm does currently utilize a sterilization process for the (b)(4). Generally speaking, (b)(4) and (b)(4) are considered adequate methods for (b)(4) sterilization. We note it is difficult to demonstrate sterilization of a (b)(4) by chemical treatment, that is (b)(4), such as sporicidal agents on (b)(4) surfaces. You further stated that “We have opened an investigation 030325-06 for observation. A risk assessment of the current process and potential product quality impact will be conducted as part of the investigation. This will be accompanied by feedback from the vendor on sterilization procedures, and the potential addition of (b)(4) on the (b)(4) valves.” However, you did not provide a copy of investigation 030325‐06 as referenced in your response, nor did you provide documentation of improvements or corrections to EM monitoring inside the (b)(4). In addition, your response did not address interim corrections including but not limited to cessation of (b)(4) products until corrections are made. Furthermore, it appears based on the manufacturer’s equipment manual that your (b)(4) are not designed for sterilization cycles.

Regarding your responses related to the insanitary conditions, some of your corrective actions appear adequate; however, we cannot fully evaluate the adequacy of the following corrective actions described in your response because you did not include sufficient information or supporting documentation:

1. With regard to your TriMix Gel product you state that “Even though the product [Trimix Gel] has been discontinued, an investigation 030325-01 has been opened that includes a review of customer complaints, adverse events, and environmental monitoring for the Trimix Gel product…” However, you did not provide a copy of investigation 030325-01 as referenced in your response.

2. You state that your firm’s new “smoke studies will include simulations that capture worst‐case, dynamic conditions on the video, along with interventions common to the processes employed in the facility during aseptic compounding in the ISO (b)(4) BSC hoods.” However, you have not provided any new smoke studies or protocols for new smoke studies. With respect to previously deficient smoke studies, you further state that your firm “opened investigation 030325‐04 for the observation and if there are any potential product quality concerns.” However, you did not provide a copy of investigation 030325‐04 as referenced in your response.

Please be aware that section 501(a)(2)(A) of the FDCA concerning insanitary conditions applies regardless of whether drug products you compound meet the conditions of section 503A, including the condition on receipt of a prescription for an identified individual patient prior to compounding and distributing drug products.

D. Conclusion

The violations cited in this letter are not intended to be an all-inclusive statement of violations at your facility. You are responsible for investigating and determining the causes of any violations and for preventing their recurrence or the occurrence of other violations. It is your responsibility to ensure that your firm complies with all requirements of federal law, including FDA regulations.

You should take prompt action to address any violations. Failure to adequately address any violations may result in legal action without further notice, including, without limitation, seizure and injunction.

Within fifteen (15) working days of receipt of this letter, please notify this office in writing of the specific steps that you have taken to address any violations. Please include an explanation of each step being taken to prevent the recurrence of violations, as well as copies of related documentation. This letter notifies you of our concerns and provides you an opportunity to address them. If you believe your products are not in violation of the FDCA, include your reasoning and any supporting information for our consideration. If you cannot completely address this matter within fifteen (15) working days, state the reason for the delay and the time within which you will do so.

Your response and any questions regarding the contents of this letter should be sent to compoundinginspections@fda.hhs.gov. In your response, refer to the Warning Letter Number above (# 709509) and include a subject line that clearly identifies the submission as a Response to Warning Letter.

Sincerely,
/S/

F. Gail Bormel, JD, RPh
Director
Office of Compounding Quality and Compliance
Office of Compliance
Center for Drug Evaluation and Research

cc: Mr. Lawerence T. Bonk
Chief Quality Officer