Side Effect How Common Typically When Usually Resolves Nausea Very common First 14 weeks / dose increases Within a few weeks Diarrhoea Very common Early treatment Within a few weeks Constipation Very common Throughout treatment With hydration and fibre Reduced appetite Very common Throughout treatment Ongoing (intended effect) Vomiting Common Early treatment / dose increases Within a few weeks Fatigue / tiredness Common Early treatment / dose increases Usually within 12 weeks Dizziness Common Early treatment Usually temporary Abdominal discomfort Common Early treatment Within a few weeks Injection site reactions Common After injecting Usually within hours Headache Less common Early treatment Usually temporary Hair thinning Less common Sustained rapid weight loss Often resolves over time Pancreatitis (rare) Rare Any stage Requires immediate review A note of reassurance: The vast majority of Mounjaro side effects are mild, temporary, and manageable

GLP-1s open a door, but lasting health comes from how we walk through it guided by sleep, calm, purpose, and connection. Dive into our GLP-1 resource center for stories on weight loss, medications, side effects, and more
How can I ensure I'm getting enough of these nutrients
Medication from unregulated sources may not have consistent or accurate doses
Adequate protein intake Proteins are made of amino acids, the building blocks of peptides
This study also showed that virus-mediated knockdown of GLP-1R in the DMH modestly attenuated 24-hour liraglutideinduced feeding suppression, but it is not clear whether this circuit is necessary for the chronic weight-reducing effects of GLP-1RAs