Complete guide: GLP-1 drugs: a complete guide to semaglutide and beyond
What the Ministry of Health said in Panama about retatrutide
In Panama, on August 24, 2026, TVN Noticias reported that the National Directorate of Pharmacy and Drugs (DNFD) of the Ministry of Health (Minsa) had received health alerts about injectable weight-loss products promoted on social media, and that some contain retatrutide, an active ingredient with no sanitary registration in the country1. Uriel Pérez, director of Pharmacy and Drugs, warned that using a medicine whose origin is uncertain and that has not even been authorized puts lives at risk1.
The TVN report cites no specific regulation and reports no retatrutide seizures; it limits itself to the warning and to Minsa's advice to avoid injectables or substances bought through unauthorized channels and to consult a professional before starting any weight-loss treatment1. It is worth being precise: this is an alert and a lack of registration, not a court case.
Which products the alert names: from tirzepatide to NAD+
The list reported by TVN includes tirzepatide, retatrutide 10 mg/ml, "Retatrutide" R10, R20 and R30, GHK-Cu, LIPO-C + B12 and NAD+ 10 mg/ml1. The report does not identify which authority issued the international alert. However, five of those products match Colombia's INVIMA Alert No. 181-2026 (June 23, 2026): tirzepatide, retatrutide 10 mg/mL, GHK-Cu, LIPO-C + B12 and NAD+ 10 mg/mL, offered as weight-control treatments and lacking sanitary registration5. That overlap is our own observation; TVN does not state it.
What matters for the physician is that the list mixes an approved GLP-1/GIP agonist (tirzepatide), a triple agonist still under investigation (retatrutide) and injectable peptides or complexes sold online. If they are bought through that channel, nobody guarantees the contents of any of them.
"No sanitary registration" means nobody guarantees what is in the vial
According to the authorities cited by TVN, the lack of registration means there is no guarantee about the product's composition, quality, safety or efficacy1. The World Health Organization states that "falsified medical products deliberately misrepresent their identity, composition or source" and that they are often sold online or in informal markets10.
Market evidence for GLP-1 products is consistent. In a test-purchase study of illegal online pharmacies, all three semaglutide vials received were judged probable substandard or falsified products: content exceeded the labeled amount by 28.56%-38.69%, endotoxin was detected in every sample, and measured purity was 7.7%-14.37% against the 99% claimed11. PAHO warned that such products "may contain incorrect doses, different active ingredients, or undeclared substances"6. These are semaglutide data, not retatrutide data, but they illustrate the kind of risk the channel carries.
Clinical cases are already appearing. A report from Edinburgh describes a man with type 1 diabetes who, after self-administering an online-purchased product marketed as retatrutide, developed vomiting, diarrhea, hyperglycemia, ketonemia (peak 4.3 mmol/L) and acute kidney injury; the authors state that causation cannot be established, since Shigella flexneri infection was also present12. A 2026 review in Missouri Medicine groups retatrutide among investigational drugs without an established human safety profile, alongside peptides such as BPC-157 and TB-500, and cites contamination, impurities and inaccurate dosing as risks13.
What is known about retatrutide, and what is still unapproved
Retatrutide is a triple agonist of the GIP, GLP-1 and glucagon receptors. In the phase 3 TRIUMPH-1 trial (2,339 adults with obesity without diabetes, 80 weeks), mean weight change was -17.6%, -23.7% and -25.0% across the three doses studied versus -3.9% with placebo, and the most common adverse events were gastrointestinal14. In TRIUMPH-2, in adults with obesity and type 2 diabetes, the difference versus placebo at week 80 ranged from -6.9% to -13.8% depending on dose, again with gastrointestinal events predominating15.
None of that amounts to an approval. Healio reported on August 14, 2026 that Eli Lilly sued six companies in the United States for selling purported versions of retatrutide; per the article, "Retatrutide has not yet been reviewed by the FDA," and the company plans to submit its license application in the first quarter of 20279. The FDA, for its part, says retatrutide cannot be used in compounding under federal law and warns about illegal products labeled "for research purposes"8. For the physician in Panama the consequence is simple: trial results come from a product made and controlled by the sponsor, not from the contents of a vial bought through Instagram.
What to do in the clinic: ask, document and report
- Ask without judging. Add a question about injectables or peptides bought on social media to the clinical history. PAHO recommends training health workers on risks and warning signs6.
- Document the product. Record brand name, presentation, seller and lot if the patient kept them; in its alert INVIMA asked professionals to report the product's source5.
- Watch higher-risk patients. The Edinburgh case shows a patient with type 1 diabetes can decompensate quickly with vomiting and diarrhea12.
- Report. On September 15, 2026 the DNFD launched VigiMedic Panamá (medicines) and VigiVac Panamá (vaccines), reachable from its website for professionals and the public; suspected therapeutic failure or quality defects are reported through the FADDI platform4.
- Check the channel. For a falsification alert, Minsa asks people to buy only from authorized pharmacies and establishments and to report irregular points of sale to line 501-0306, as it said in its August alert on a falsified Mounjaro lot3.
PAHO sums it up: these medicines should be used "exclusively under medical prescription" with clinical follow-up7. More context in our articles on the Minsa campaign against falsified medicines, falsified Ozempic and Mounjaro in Panama, pharmacovigilance with VigiMedic and retatrutide in phase 3 and the gray market.
Sources
- TVN Noticias (Panamá). Danna Durán. El peligro detrás de los inyectables para adelgazar que se venden en redes. 24 de agosto de 2026. tvn-2.com ↗
- Panamá América. Minsa lanza campaña nacional contra los medicamentos falsificados. 1 de septiembre de 2026. panamaamerica.com.pa ↗
- La Prensa (Panamá). Samaniego A. Minsa alerta sobre Mounjaro falsificado; este es el lote identificado. 23 de agosto de 2026. prensa.com ↗
- Dirección Nacional de Farmacia y Drogas (Minsa Panamá). Lanzamiento de VigiMedic Panamá y VigiVac Panamá. 15 de septiembre de 2026. dnfd.minsa.gob.pa ↗
- INVIMA (Colombia). Alerta Sanitaria No. 181-2026: Tirzepatide Injection 10 mg, Retatrutide 10 mg/mL, GHK-Cu Peptide Solution, LIPO-C + B12, NAD+ 10 mg/mL. 23 de junio de 2026. invima.gov.co ↗
- PAHO. PAHO calls for strengthened pharmacovigilance following reports of misuse of GLP-1 medicines. 3 de marzo de 2026. paho.org ↗
- OPS. Ante reportes de uso indebido de medicamentos GLP-1 indicados para tratar la obesidad, la OPS pide reforzar la farmacovigilancia. 3 de marzo de 2026. paho.org ↗
- U.S. Food and Drug Administration. FDA's concerns with unapproved GLP-1 drugs used for weight loss. Actualizado el 1 de octubre de 2026. fda.gov ↗
- Healio. Eli Lilly files lawsuits against six companies for allegedly selling retatrutide. 14 de agosto de 2026. healio.com ↗
- World Health Organization. Substandard and falsified medical products (fact sheet). who.int ↗
- Ashraf AR, et al. Multifactor quality and safety analysis of semaglutide products sold by online sellers without a prescription. J Med Internet Res. 2024;26:e65440. PubMed 39509151 ↗
- Branine N. Online-sourced retatrutide complicating impending diabetic ketoacidosis in a patient with type 1 diabetes and concurrent Shigella gastroenteritis. Cureus. 2026;18(8):e115260. PubMed 42669023 ↗
- Moiz A, O'Keefe EL, O'Keefe JH. Dangers of injectable peptides and other unregulated "biohacking" drugs. Mo Med. 2026;123(4):337-343. PubMed 42757290 ↗
- Jastreboff AM, et al. Retatrutide, a triple hormone receptor agonist, for treatment of obesity (TRIUMPH-1). N Engl J Med. 2026;395(18):1781-1793. PubMed 42814954 ↗
- Bellido V, et al. Retatrutide in adults with obesity and type 2 diabetes (TRIUMPH-2). Lancet. 2026 (publicado el 10 de octubre). PubMed 42810372 ↗
Informational article. It summarizes news, official statements and published studies; it is not medical or legal advice. Sources were checked on the publication date.