Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Retatrutide | Tadalafil | |
|---|---|---|
| Category | Pharmaceuticals | Pharmaceuticals |
| Standard Dose | — | — |
| Timing | — | — |
| Cycle Duration | — | — |
| Evidence Level | Emerging (Phase 3 ongoing) | Strong |
Triple incretin agonist (GIP/GLP-1/glucagon receptor). Combines appetite suppression and insulin sensitization of GLP-1 with the thermogenic and lipolytic effects of glucagon receptor activation. Produced the greatest weight loss of any anti-obesity agent in Phase 2 trials (~24% at 48 weeks).
PDE5 inhibitor that improves nitric oxide signaling, erectile function, and selected vascular-performance outcomes.
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