Your healthcare provider can help adjust your treatment or dosage
Both can be effective in weight loss, but in head-to-head trials, tirzepatide has a slight edge over semaglutide
This is consistent with how prescription medication programs typically structure refund terms - prescription medications can't be returned to stock - but it's a significant departure from the "satisfaction guarantee" language common in supplement and consumer product categories
Guida C, Stephen SD, Watson M, Dempster N, Larraufie P, Marjot T, et al
Diabetes Care 36:29452951 Fonseca VA, Alvarado-Ruiz R, Raccah D et al (2012) Efficacy and safety of the once-daily GLP-1 receptor agonist lixisenatide in monotherapy: a randomized, double-blind, placebo-controlled trial in patients with type 2 diabetes (GetGoal-Mono)