Yes, Jeuveau can have side effects, though most are mild and temporary. Common side effects include injection site reactions such as pain, swelling, redness, or bruising, as well as headaches. Some patients may experience temporary drooping of the eyelids or a dry mouth sensation. While serious side effects are rare, they can occur and may include allergic reactions, muscle weakness, difficulty swallowing or breathing, and vision problems. It’s important to discuss any concerns with your healthcare provider before treatment, and to contact them immediately if you experience severe or persistent side effects.