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September 2026

Notice of FDA Action: What Happens When FDA Detains Your Peptide or GLP-1 Package

A detained parcel of medicine comes with a notice, a response window of about 10 working days, and a hard line at $2,500: below it, a violative drug is destroyed rather than returned. FDA's own procedure, step by step.

ByJenna PrattConsumer-access reporterPublished

A Notice of FDA Action is the letter FDA sends when it stops an imported shipment. On a mailed parcel of medicine it usually reads “DETAINED – Subject to Refusal and Administrative Destruction,” or similar wording, and it tells the owner or consignee there is a right to a hearing on the detention[1].

For peptide and GLP-1 buyers, the orders that draw one come from overseas. Think of a pen from a foreign pharmacy website, semaglutide powder sold as a research chemical, or a vial labeled for research use only. What that label means is in what are RUO peptides, and why most personal imports are illegal to begin with is in can you bring Ozempic back from Mexico.

How a parcel ends up detained

International parcels come in through the mail facilities, where a CBP officer from the mail division examines them. The officer sets a parcel aside if it appears to contain a drug, a biologic or a device, has been flagged by FDA, or looks like a health fraud or unknown risk to health. FDA then audits what was set aside[1]. A label, insert or packing slip is often enough, because the manual says a documentary sample “will be sufficient for most regulatory purposes”[1].

Detention needs evidence, but not much. The manual says a detention can rest on “very brief examinations” if they furnish evidence of the appearance of a violation. It can also rest on documentary evidence, such as a violation in an earlier shipment from the same firm[1].

What the charges mean

The charges on the notice are the only statement of what FDA thinks is wrong. The manual says each should cite the section of law and explain the problem clearly enough for you to answer it[1]. Most drug charges trace to three grounds in section 801(a) of the Federal Food, Drug, and Cosmetic Act.

The grounds for refusing an imported article under section 801(a), as FDA's manual sets them out
GroundWhat it covers
Insanitary conditionsThe article was manufactured, processed or packed under insanitary conditions
Restricted at originThe article is forbidden or restricted in sale in the country where it was made or from which it was exported
Adulterated, misbranded or unapprovedThe article is adulterated, misbranded, or in violation of section 505, the new-drug approval requirement
The grounds for refusing an imported article under section 801(a), as FDA's manual sets them out. FDA Regulatory Procedures Manual, chapter 9, section 9-3-2 (March 2024)

The third row is the one most personal orders meet. FDA’s own page says that a drug approved in another country but unapproved in the U.S. “is illegal to import”[3].

The response window

FDA’s regulation says the notice must name a place and a period of time for you to introduce testimony. That testimony may be oral or written, and must stay on whether the article can be admitted or should be destroyed[2]. The manual puts a number on that period. It “has generally been FDA’s procedure” to allow 10 working days from the detention date on the notice, and the office can extend it, for example when holiday mail is slow[1].

Testimony can go in by telephone, fax, mail, email or in person, and the compliance officer is expected to document it[1]. If nothing arrives within 10 days, excluding weekends and holidays, and no extension was granted, FDA can go straight to refusal[1].

What makes a response worth sending is the personal importation criteria. For a drug for a serious condition, FDA’s page lists a written statement that it is for personal use and generally no more than a three-month supply. It also asks for a U.S.-licensed doctor’s name and address, or evidence of treatment begun abroad, among other conditions[3].

What happens after

FDA either releases the parcel or refuses it. A refused article gets a “Notice of Refusal of Admission – Return to Sender,” unless it is a drug valued at $2,500 or less that FDA has found adulterated, misbranded or unapproved[1]. That drug gets a Notice of Refusal of Admission and Administrative Destruction, and it “will be destroyed without providing the owner or consignee with the opportunity to export”[1].

That authority dates from 2012, when Congress amended section 801(a) to let FDA destroy refused drugs at or under the $2,500 line after notice and a chance to present testimony[1]. FDA’s regulation also lets it send one combined notice of refusal and destruction and hold a single hearing on both[2]. The entry stays open until the product is placed in a locked drum for destruction[1].

FDA’s personal importation page lists four reasons it refuses a personal import. The product is on an import alert, the shipment appears commercial, the product appears to present a serious risk to health, or it appears to be a health fraud[3].

Import alerts and GLP-1 powder

FDA has set up a green-list import alert, 66-80, to help stop GLP-1 active pharmaceutical ingredients with potential quality concerns from entering the U.S. supply chain[4]. It does not apply to ingredients from manufacturers that appear to meet FDA’s manufacturing standards[4]. Separately, the manual says drugs subject to import alerts are generally “not amenable” to the personal importation procedures at all[1].

What it costs you

On a destroyed parcel, the money is gone unless the seller refunds it, and nothing in FDA's procedure provides for that. For semaglutide and tirzepatide, FDA's advice is a doctor's prescription filled at a state-licensed pharmacy, and compounded versions only when an approved drug cannot meet the patient's need.[4] How to check that pharmacy is in compounding pharmacy near me, and the rules for mailing medicine inside the country are in can you mail prescription drugs.

The one question to ask a seller who ships from abroad: “If FDA detains or destroys the package, do you refund or reship, and where does that promise appear in your terms?”

FAQ

4 questions

What is a Notice of FDA Action?

It is the letter FDA sends when it holds an imported shipment. For mailed drugs it usually reads "DETAINED – Subject to Refusal and Administrative Destruction" or similar wording, lists the charges, and gives the owner or consignee a right to a hearing.

How long do you have to respond to a Notice of FDA Action?

FDA's manual says it has generally been FDA's procedure to allow 10 working days from the detention date on the notice, and the office can extend that. Testimony can be given by phone, fax, mail, email or in person.

Will FDA send my detained package back?

Refused articles are generally returned to sender, except drugs valued at $2,500 or less that FDA finds adulterated, misbranded or unapproved. Those are destroyed without the opportunity to export.

Can customs seize peptides ordered from overseas?

Yes. CBP's mail division sets aside parcels that appear to contain drugs, and FDA decides whether to release, detain or refuse them. FDA refuses personal imports that are on an import alert, appear commercial, appear to present a serious health risk, or appear to be a health fraud.

Sources

4 cited
  1. [1]U.S. Food and Drug Administration (2024). Regulatory Procedures Manual, Chapter 9: Import Operations and Actions, sections 9-2 to 9-4 (March 2024) FDA. Source
  2. [2]U.S. Food and Drug Administration (2024). 21 CFR 1.94: Hearing on refusal of admission or destruction Electronic Code of Federal Regulations. Source
  3. [3]U.S. Food and Drug Administration (2025). Personal Importation FDA, Import Program: Import Basics. Source
  4. [4]U.S. Food and Drug Administration (2026). FDA's Concerns with Unapproved GLP-1 Drugs Used for Weight Loss FDA, Drug Alerts and Statements. Source