The retatrutide label does not specify "back of" the arm in explicit terms the way some approved-drug IFUs do, but that is the anatomically practical location
Who Should Avoid Semaglutide
Because these compounds are highly potent, even small variations during reconstitution can significantly alter the final concentration of the solution
This pattern repeats at every dose increase, and understanding it prevents unnecessary worry
What are the side effects of GLP-1 and GLP-1/GIP medications
When to contact your healthcare provider : You should seek medical advice if you experience: Severe or persistent nausea and vomiting preventing adequate fluid intake Signs of pancreatitis (severe abdominal pain radiating to the back) Gallbladder symptoms (pain in the right upper abdomen, fever, jaundice) Symptoms of hypoglycaemia if taking other diabetes medications Visual changes or worsening eyesight Severe allergic reactions (rash, swelling, breathing difficulties) Unexplained fatigue that worsens rather than improves These medications are not recommended during pregnancy or breastfeeding