They should not be used by: People with a history of pancreatitis (inflammation of the pancreas) Anyone with a personal or family history of medullary thyroid cancer (a rare type of thyroid cancer) People with multiple endocrine neoplasia type 2 (MEN 2, a rare inherited condition that raises the risk of certain hormone-related tumors, including thyroid cancer) Women who are pregnant or breastfeeding People with severe stomach or bowel problems, such as gastroparesis (slow stomach emptying that causes nausea, fullness, or vomiting) or inflammatory bowel disease (chronic inflammation of the digestive tract, such as Crohns disease or ulcerative colitis) Those with severe kidney problems, especially with certain types of GLP-1 medicines, such as exenatide Anyone with allergies to GLP-1 medications or who has had a severe reaction to them Use in children is limited to certain GLP-1 medicines approved for adolescents with obesity

Prohibited Uses: These products are not to be used as active pharmaceutical ingredients (APIs)for compounding or manufacturing drugs for human or veterinary use
So while the question does Retatrutide cause hair loss keeps coming up, the weight loss process itself is the more likely culprit
"Tirzepatide Once Weekly for the Treatment of Obesity." NEJM 2022 (SURMOUNT-1) ClinicalTrials.gov: TRIUMPH Phase 3 program trial protocols and status updates FDA Prescribing Information: Wegovy, Mounjaro/Zepbound, Saxenda (for comparative safety data) Frequently Asked Questions Most side effects peak during dose escalation (weeks 412) and improve substantially by week 24
Some breastfeeding mothers time their dose around power-pumping sessions to align supplementation with peak demand