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While the medication has transformed weight loss for millions, the rules for breastfeeding mothers are more complex than a simple yes or no. As of early 2026, the official stance from the FDA remains cautious

Each time you open a peptide vial, you expose the contents to ambient air, light, and humidity

However, their side effects on the cardiovascular, psychological, and gastrointestinal systems have prompted the search for safer treatments

Generally yes, but exercise caution with stacking multiple blood-sugar-lowering compounds

On the pipeline, since the last earnings call, Lilly reported positive Phase III data from five trials, initiated six new Phase III programs, and announced four acquisitions

Diagnostic tests may include an upper endoscopy, a 24-hour ambulatory acid probe test, esophageal motility testing, and X-rays of the upper digestive system