From $36.5B Tirzepatide revenue to a $1T+ market cap at Eli Lilly — peptides are the fastest-growing category in wellness and longevity.
Tirzepatide revenue in 2025
Eli Lilly market cap built on peptide-driven growth
of eligible patients are still not using GLP-1 therapy (42% of all Americans are the TAM)

GLP-1 Was the Opening Act. Retatrutide (GLP-3) May Be the Main Event.
Retatrutide is a triple hormone receptor agonist (GIP + GLP-1 + glucagon) in Phase 3 trials by Eli Lilly. Early data shows superior weight loss outcomes vs. Tirzepatide, with emerging evidence for metabolic, cardiovascular, and human optimization applications well beyond fat loss.
Phase 3 clinical data is generating significant institutional attention. The human optimization story — muscle preservation, metabolic health, cognitive function, longevity — expands the TAM dramatically beyond the 42% GLP-1-eligible population. This is the transition from weight drug to longevity drug.
Our platform is molecule-agnostic. When Retatrutide clears regulatory hurdles, Primus has the physician network, compounding pharmacy relationships, compliant prescribing infrastructure, and 90K+ patient dataset to commercialize it faster than any new entrant could build from scratch.
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