Cyclopentolate Ophthalmic and Letibotulinumtoxina-Wlbg: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Cyclopentolate Ophthalmic
Letibotulinumtoxina-Wlbg
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
What happens
Increased neuromuscular weakness and heightened systemic anticholinergic effects
Interaction Deep Dive
Concomitant use of letibotulinumtoxinA-wlbg and anticholinergics may potentiate the effects of letibotulinumtoxinA-wlbg and heighten the anticholinergic effects which may result in excessive neuromuscular weakness due to interference with neuromuscular transmission by anticholinergics. Use caution with concurrent use of letibotulinumtoxinA-wlbg and anticholinergics, and monitor closely for excessive neuromuscular weakness1.
Why it happens (mechanism)
Interference with neuromuscular transmission
Common questions
Can I take Cyclopentolate Ophthalmic and Letibotulinumtoxina-Wlbg together?
Increased neuromuscular weakness and heightened systemic anticholinergic effects Always confirm with your pharmacist or prescriber before making any change.
How serious is the Cyclopentolate Ophthalmic and Letibotulinumtoxina-Wlbg interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
Questions for your pharmacist
- Does my dose of Cyclopentolate Ophthalmic or Letibotulinumtoxina-Wlbg need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (1)
- Product Information: LETYBO intramuscular injection, letibotulinumtoxinA-wlbg intramuscular injection. Hugel America, Inc. (Per Manufacturer), Newport Beach, CA, 2024.
Keep reading about Cyclopentolate Ophthalmic
Keep reading about Letibotulinumtoxina-Wlbg
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