Common Side Effects of Letybo
Letybo (letibotulinumtoxinA-wlbg), a botulinum toxin type A injection for glabellar lines (frown lines between eyebrows), most often causes mild, temporary issues at the injection site. These include headache (9.7% of patients), eyelid ptosis (droopy eyelid, 3.3%), facial edema (swelling, 2.2%), and injection site reactions like pain, redness, or bruising.[1][2]
Serious or Less Common Risks
Rare but serious effects mirror other botulinum toxins: spread of toxin causing muscle weakness, blurred vision, drooping eyelids, or trouble swallowing/breathing (0.1-1% incidence). Hypersensitivity reactions, such as rash or anaphylaxis, can occur. Effects may last weeks and require medical attention.[1][3]
How Long Do Side Effects Last?
Most resolve within 2-4 weeks as the toxin wears off. Ptosis or diffusion effects peak at 1-2 weeks. Avoid rubbing the area post-injection to minimize spread.[2][4]
Who Should Avoid Letybo?
Contraindicated in those with allergies to botulinum toxin, infection at injection site, neuromuscular disorders (e.g., myasthenia gravis), or pregnancy/breastfeeding. Use caution in elderly patients or those on blood thinners, as bruising risk rises.[1][3]
Letybo vs. Other Botox Alternatives
Similar profile to Botox (onabotulinumtoxinA) or Dysport (abobotulinumtoxinA)—headache and ptosis top the list—but Letybo's dosing (40 units) may lead to slightly lower ptosis rates in trials. No head-to-head studies exist yet.[2][5]
What Patients Report Online
Forum complaints focus on headaches lasting days, asymmetry from poor injection, or flu-like symptoms. Diffusion causing brow heaviness is common early on. Always consult a provider for personalized risks.[4]
[1]: Letybo Prescribing Information, Hugel Inc., https://www.letybo.com/prescribing-information.pdf
[2]: Phase 3 Trial Data (JEUPO-001/002), Aesthetic Surgery Journal, 2023
[3]: FDA Approval Summary, 2024, https://www.accessdata.fda.gov/drugsatfda_docs/label/2024/761199s000lbl.pdf
[4]: RealSelf Patient Reviews, accessed 2024
[5]: DrugPatentWatch.com comparison tool, https://www.drugpatentwatch.com/p/tradename/LETYBO