Tirzepatide vs Retatrutide
Tirzepatide vs Retatrutide: dual vs triple agonist. Effect size, side effects, and current availability.
Tirzepatide is the prescription weight-loss drug sold as Mounjaro (diabetes) or Zepbound (weight loss). It hits two appetite-control receptors at once. Most users lose 15-20% of body weight over several months. One injection per week.
Retatrutide is the newest weight-loss compound in development at Eli Lilly. It's a stronger cousin of Tirzepatide (Mounjaro / Zepbound) and pulls bigger weight loss in trials, often 20%+ of body weight. One injection per week. Side effects are real, especially in the first few weeks.
Which one should you pick?
Pick Tirzepatide if users who couldn't tolerate semaglutide or metabolic-syndrome adults under provider guidance.
Pick Retatrutide if people plateaued on tirzepatide or users targeting >15% body weight loss.