Approved
An approved medicine has been reviewed by a regulator, which assessed manufacturing quality, clinical evidence, and benefit-risk balance for a specific indication and population. It carries official labelling and is subject to post-marketing surveillance.
Fig. 02 / Molecular pathwayInvestigational
An investigational compound is being studied under a protocol with ethics oversight, defined eligibility, and adverse-event reporting. It has no approved indication. Access outside a trial is not the same as participation in one.
Compounded
A compounded preparation is made by a pharmacy or outsourcing facility for a specific clinical need. Compounded products are not FDA-approved and do not undergo premarket review of safety, efficacy, or manufacturing quality. Some peptide substances have been flagged by regulators as raising significant safety concerns for compounding.
Fig. 03 / Evidence landscapeWhy the distinction is decisive
Trial evidence for an approved product does not transfer to a compounded or unapproved version of the same molecule. Identity, purity, concentration, and sterility are part of what was evaluated — not incidental details.
Editorial disclaimer
This site is educational and does not provide medical advice, dosing protocols, or treatment recommendations. Regulatory status and evidence strength differ sharply between compounds. A “research use only” label does not indicate that a product is appropriate for human use. Decisions about medicines belong with a qualified clinician.