Notebook entry
Lane: an approved medicine
One lane holds approved drugs.
FDA-approved examples include semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound).
The FDA approves one particular medicine for particular health problems. Ask whether the medicine offered to you is approved for your problem; the word “peptide” alone proves nothing.
Notebook entry
Lane: a made-to-order medicine
Making a medicine to order means a pharmacy prepares the drug itself rather than handing over a finished product the FDA approved.
A pharmacist, a doctor, or a larger batch-making site registered with the FDA (called an outsourcing facility) may do that work.
As of September 2026, no compounded medicine was FDA-approved.
The FDA had not checked if each one was safe, worked well or met its quality rules before sale.
The reason for using one belongs in the medical conversation, not in a sales slogan.
Notebook entry
Lane: a research chemical
FDA warning letters, as of September 2026, told online peptide-chemical sellers that what they sold for people to use counted as unapproved drugs.
The letters said a “research use only” label did not change that when the seller’s own website showed the product was meant for people.
A research label is not a back door into medical treatment.
Brief source notes
FDA compounding questions and answersA federal starting point for made-to-order medicine.
FDA risks of compounded drugsWhy approval and compounding are different ideas.