While compounded medications account for less than 3% of all U.S
Key Takeaway: Tirzepatide targets two metabolic receptors (GLP-1/GIP) to offer up to 20.9% average weight loss, while Retatrutide attacks fat storage via three pathways (GLP-1/GIP/Glucagon), yielding unprecedented weight loss averages near 24.2% in Phase 2 trials
These prospective studies will provide definitive evidence about whether these medications can prevent or slow cognitive decline in high-risk populations
Across the full GLP-1 and obesity drug space, the post-2026 picture is a price-expansion wave led by Indian and Chinese biosimilars and by new dual or triple-agonist molecules, yet real uptake in the USA and EU will be shaped less by tariffs and more by regulatory timing, drug-device parity on pens and human-factors equivalence for AB-substitution, secondary IP and Orange Book hurdles, and payer or formulary contracting
In real-world practice, several patients can all ask about the same medication and still need very different plans: One may have significant GI sensitivity and need slower escalation
Microdosing GLP-1s for cosmetic weight loss: Patients are asking me about it, TV and online ads are promoting it, friends are speculating about whos doing it