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Head-to-head evidence comparison — which supplement is right for you?
Tirzepatide wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (2)
Outcomes where both Cagrilintide and Tirzepatide have evidence — compare verdict strength side-by-side.
Investigational — NO approved monotherapy dose. Phase-2 trials used once-weekly subcutaneous injection with stepwise escalation up to 4.5 mg maintenance. There is no approved standalone regimen; do not self-dose an unapproved drug.
once-weekly
Once-weekly subcutaneous injection (investigational only)
Once-weekly subcutaneous injection, started at 2.5 mg and escalated by 2.5 mg every 4 weeks to a maintenance dose of 5, 10, or 15 mg (per the prescribing physician and approved indication)
any
Once-weekly subcutaneous injection (Mounjaro / Zepbound)
Over 26 weeks
Over 20-32 weeks
By 32 weeks
Especially during dose escalation
Weeks to months
Months (dose-escalated over ~20 weeks)
Weeks to months
Mostly during titration
Once-weekly cagrilintide for weight management in people with overweight and obesity: a multicentre, randomised, double-blind, placebo-controlled and active-controlled, dose-finding phase 2 trial.
Lancet (2021) · Rct · n=706
Phase-2, double-blind, randomised, placebo- and active-controlled dose-finding trial across 57 sites in ten countries; 706 adults with overweight/obesity (no diabetes) on once-weekly subcutaneous cagrilintide 0.3-4.5 mg vs liraglutide 3.0 mg vs placebo over 26 weeks
Safety, tolerability, pharmacokinetics, and pharmacodynamics of concomitant administration of multiple doses of cagrilintide with semaglutide 2·4 mg for weight management: a randomised, controlled, phase 1b trial.
Lancet (2021) · Rct · n=95
Phase-1b, randomised, placebo-controlled, multiple-ascending-dose trial in 95 treated adults with overweight/obesity; once-weekly subcutaneous cagrilintide 0.16-4.5 mg co-administered with semaglutide 2.4 mg over 20 weeks
Efficacy and safety of co-administered once-weekly cagrilintide 2·4 mg with once-weekly semaglutide 2·4 mg in type 2 diabetes: a multicentre, randomised, double-blind, active-controlled, phase 2 trial.
Lancet (2023) · Rct · n=92
Phase-2, double-blind, active-controlled trial in 92 adults with type 2 diabetes on metformin ± SGLT2 inhibitor; once-weekly CagriSema vs semaglutide vs cagrilintide (all escalated to 2.4 mg) over 32 weeks
Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes.
N Engl J Med (2021) · Rct · n=1879
Open-label 40-week phase-3 head-to-head RCT (SURPASS-2) in 1879 patients with type 2 diabetes, tirzepatide 5/10/15 mg vs semaglutide 1 mg
Tirzepatide Once Weekly for the Treatment of Obesity.
N Engl J Med (2022) · Rct · n=2539
72-week phase-3 double-blind RCT (SURMOUNT-1) in 2539 adults with obesity (without diabetes), tirzepatide 5/10/15 mg vs placebo
Tirzepatide as Compared with Semaglutide for the Treatment of Obesity.
N Engl J Med (2025) · Rct · n=751
Phase-3b open-label head-to-head RCT (SURMOUNT-5) in 751 adults with obesity but without diabetes, max-tolerated tirzepatide vs max-tolerated semaglutide
Tirzepatide has a higher evidence score (7.8/10 vs 5/10) and wins in 2 of 3 categories.
No known interactions between Cagrilintide and Tirzepatide have been documented in our database. However, always consult a healthcare provider before combining supplements.