08/21/2026
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Letybo® is a prescription medicine for adults that is injected into muscles to temporarily improve the look of moderate to severe frown lines between the eyebrows (glabellar lines).
Ask your doctor to tell you about Letybo®.
Letybo® may cause serious side effects hours to weeks after injection. Alert your doctor right away as difficulty swallowing, speaking, breathing, eye problems or muscle weakness can be a sign of a life-threatening condition. The most common side effect is headache but others may include eye problems or allergic reactions. Call your doctor for advice about side effects.