semaglutide missed period Can Zepbound mess with your menstrual cycle? The truth Can Semaglutide Cause irregular Periods

This is the second time the FDA has rejected SPN-830

The researchers noted this suggests discontinuing medication may not be required when adhering to a clear liquid diet the day before these procedures

However, research published in the Annals of Internal Medicine found an important nuance: longer-acting GLP-1 receptor agonists (which includes both tirzepatide and once-weekly semaglutide) were actually associated with lower GERD risk than shorter-acting versions like liraglutide

The Overlap Risk: Why Concurrent Use Is Not Recommended The Pharmaceutical Journal (Royal Pharmaceutical Society, December 2025) states that concurrent administration of tirzepatide and semaglutide "could heighten side effects" due to their "overlapping incretin activity." When both drugs are active simultaneously, the GLP-1 receptor faces amplified agonist load

This study was led by Yunha Noh - grateful to her and all of our collaborators for their important contributions

doi: 10.1016/j.cmet.2007.08.014