Clinical trials have demonstrated that nausea, diarrhea, vomiting, constipation, and abdominal discomfort occur frequently, particularly during dose initiation and escalation
Importantly, GLP-1RA significantly reduced the frequency and duration of seizures in the mouse model of epilepsy
One placebo-controlled trial, called ATTAIN-MAINTAIN, followed adults who had previously completed the SURMOUNT-5 obesity trial, a randomized controlled study evaluating whether tirzepatide, the active ingredient in Zepbound, led to greater body weight reduction versus semaglutide in adults with obesity
doi: 10.3390/nu14132559
Head-to-head clinical trials comparing semaglutide and tirzepatide have generally shown tirzepatide producing somewhat greater average weight loss
They also have shown that they could have endotoxins, which is a marker of contamination. Two-thirds of doctors polled said they were either moderately or very concerned about patient access to research peptides