Nutrient deficiencies: Because the drugs suppress appetite and reduce caloric intake, some people may not get sufficient amounts of essential vitamins and minerals
Presented at the 2025 Society of Hematologic Oncology Annual Meeting

Patients should seek medical advice if headaches are accompanied by: Neurological symptoms : Vision changes, weakness, numbness, difficulty speaking, confusion, or loss of consciousness Severe nausea and vomiting : Particularly if unable to maintain adequate hydration or take medications for more than 24 hours Signs of dehydration : Markedly decreased urination, dark urine, dizziness, rapid heartbeat, or dry mucous membranes Fever or neck stiffness : Which may suggest infection requiring evaluation Changes in headache pattern : New characteristics in patients with pre-existing headache disorders New onset after age 50 : Headaches beginning later in life require evaluation Severe, persistent abdominal pain with or without vomiting : May indicate pancreatitis, a rare but serious side effect of GLP-1 medications requiring immediate medical attention Healthcare providers may recommend several approaches when evaluating persistent headaches

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