Both semaglutide and tirzepatide work. Both produce meaningful weight loss. But they're not the same drug, and the choice between them isn't just about which one sounds more advanced. Here's how to think through it with your provider.
How They're Different
Semaglutide
- GLP-1 receptor agonist only
- Slows gastric emptying, suppresses appetite
- ~15% avg body weight loss in trials
- Well-studied, longer safety track record
- Generally well-tolerated at low doses
Tirzepatide
- Dual GIP + GLP-1 receptor agonist
- Two hormone pathways vs one
- ~20-22% avg body weight loss in trials
- Stronger in head-to-head comparisons
- Can have stronger nausea at escalation
When Semaglutide May Be Better
- GI sensitivity — semaglutide tends to be gentler at low doses
- You want to start conservatively and titrate slowly
- Your provider has more clinical experience with semaglutide protocols
- Cost is a factor — compounded semaglutide is often $50–100/mo cheaper
When Tirzepatide May Be Better
- You need stronger results — clinically superior for weight loss
- You have insulin resistance or metabolic syndrome
- You've plateaued on semaglutide
- Your provider specializes in tirzepatide and has good titration protocols
The Most Important Variable
The biggest factor in your results isn't which drug you choose — it's the quality of the compound, the clinic's titration protocol, and the monitoring they provide. A properly sourced semaglutide protocol will outperform improperly sourced tirzepatide every time. Ask about sourcing first, then compare the drugs.
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