In the same study, people using both the pill form and the injectable form of GLP-1s experienced frequent gastrointestinal adverse events
As of 2026, Melanotan II is not listed as a controlled substance under the Misuse of Drugs Act 1971 in the sources available to us [1]
for the BPC-157 deep dive, see What Is BPC-157
So while these medications are very effective and have been studied in long trials, there is a substantial portion who won't achieve at least 5% weight loss
(PubMed) Wu X, Yang K, Tang X, et al
That is precisely why the completed, published phase 3 record matters so much for retatrutide, and why an approved drug with years of data behind it retains a real advantage even against a challenger posting bigger headline numbers